Recently I've bought and used and returned a TON of keyboard solutions for the iPad Air 2... Basically, my 2011 Macbook Air finally bit the dust (after serving me faithfully in terrible conditions in over 20 countries) and I've been using an iPad Air 2 as a stop-gap while I wait for the redesigned Macbook Air to drop. So I've been looking for something tough, simple to use, reasonably portable, and pleasurable to type on.
Here's a few thoughts on a few keyboards I've tried out:
ZAGG Slim Book Case: This keyboard was probably the least durable of everything I tried. I actually opened a couple of them in Best Buy, because the first one I checked out actually had a bent or warped keyboard, and didn't rest flat on a table. I didn't read the writing on the wall, and bought one anyway. Mine didn't bend, because I returned it before it had a chance to... The plastic covering for the iPad was flimsy, made of the sort of plastic that cracks easily, and worst of all, had a very loose fit on the iPad. Honestly, iPad protection isn't a huge factor for me... I expect it to get scratches, and it's at least as durable as an Apple laptop, so I'm okay with even no case or backing... The issue here was that the fit was loose enough that I didn't feel cofident the iPad wouldn't slip out and fall on the floor if I was shuffling the case from say my lap to the table top. I did like the backlit keys on this model though. Nice tactile response, good spacing. One of the nicest to type on. Overall, it's big selling point is the aluminum backlit keyboard, but the thinness of that aluminum makes it prone to bending, and case that secures the iPad isn't worthy of a $15 price tag, let alone $129.
ZAGG Folio: Nothing overtly wrong with this case, if it cost somewhere in the $30-$40 range. At $89, it's just not up to par. Cheap, waxy plastic. Cheap leather stuck on in a manner that suggested it would start peeling off the case sooner rather than later. Everything about this case felt and looked cheap. The black version was the best by far... The cheapness was somewhat hidden. The red and blue versions looked like baby's toys. Keyboard was meh, a little cramped with a bit of a mushy feel.
Logitech Ultrathin: Closed it looks nice. I'm not a huge fan of the magnetic cover designs where you remove and put your iPad in a separte slot for use... I prefer the clamshell or folio thing, but that's subjective. It nice for what it is, so fans of this design should be happy. The keyboard is okay, if a little cramped... Very similar to the Zagg folio in size, but with better tactile feel. The dealbreaker for me with the Ultrathin was the angle that the iPad rested in the slot. Very close to straight up and down. I found it had to work this way... I need more of an angle back. For people who aren't bugged by the screen angle, this is decently priced at the discounted $79 Best Buy and others have it at. The retail $99 might be a bit much.
Logitech Type+: This is a simple, well designed and easy to use keyboard folio. It's attractive, and the keyboard is decent. Same tactile response as the Ultrathin, but it seems a bit larger to me. Overall, I liked the Type+ a lot. Unfortunately, mine had to be returned... There appears to be an issue with the wide-weave ballistic nylon covered version... It begins to "hair" or "whisker" almost immediately... After only a few visits to the cafe, I found myself trimming loose threads along the edges with scissors to stop the case from looking tired and old. Looks aside, my greater concern was that the outer fabric might quickly wear to the point where it would separate from the plastic body, and the case would essentially split, like those old nylon covered plastic school binders that were only good for a semester or two. I've seen a newer version that uses a similarly textured outer fabric that appears to be a tighter weave with a more rubbery feel. Perhaps that wears better. Like many of these keyboards, I don't think it's worth the cost of admission. $99 is steep. If it was discounted to $79 like it's sister the Ultrathin, I'd say go for it, assuming it's not the wide-weave ballistic nylon version.
Logitech Keys-To-Go: Not a case obviously, and you'll need a cover or something to prop up your iPad. These were actually better than I thought they'd be. The tactile response was very decent. There's no getting around how small they are... I actually think they could have garnered a much better overall typing experience with another .5 inch of width that nobody would have noticed, but whatever... They're fine as is. They appear durable... And the sort of ashy matte surface already looks kind of dirty, at least on the black model, so it should wear well. I used it in the store a good amount, but didn't actually buy this one. It seems overpriced by about 50%. It would be a nice piece of kit at $39. It's pretty steep at $69.
Logitech K480: Okay, this isn't a case, or rechargable, or have an auto on/off switch, nor is it what most would consider portable, and it's definitely not sexy. But it's what I'm typing this post on. At the end of the day, I picked it up for $35, it's durable, simple to use, and has the best build quality of all the various solutions I tried... Which is shameful when you consider how big the price differences are here. Slap "iPad Air 2" on the side of something and... But I'm getting off-topic. The K480 also happens to have the nicest keyboard feel and spacing of everything I've tried, including my old Macbook Air. It's heavy, but it fits in my bag, and once set up on a table, makes for really nice work station. The 3-way Blutooth switch works as advertised and is fast, although it's not something I need. I dunno if I'd buy the K480 for the retail $49. Standard batteries are a drag, and I wish it had a magnetic sensor in the dock for auto on/off, instead of a switch on the bottom and a blutooth pairing key. And backlit keys would be great. But again, it was $35, and so far there are no inherent deal-breakers. So if I don't find anything better while waiting on the new Macbook Air, I'm okay with that.
I still may try the Clamshell Pro and the Brydge Air. Maybe. Some issues I've been reading about the Clamshell and the fact that it runs $169 ($149 with coupon code) may make it a non-starter with me. Similar deal with the $169 Brydge (no discounts)... I'd like to see a cheaper non-speaker version of the Brydge Air like they did with the older model. And I've been hearing complaints of color-matching issues with the Air 2... For either of these high-priced guys to ring my bell, they need to be essentially flawless.