I come from this in a similar situation as you, OP.
I love the screen of the Plus, and the battery life is phenomenal, unlike any iPhone to date. I really like using it at home to replace my iPad and computer at times for web browsing and watching videos.
However, the real problem of the iPhone 6 Plus comes with the expense of using it out of the house. I agree with an earlier poster that stated that once you pull out the Plus, you almost have to work with it completely different and that it can get in the way of the things. I attend a lot of concerts and shows, and bringing out that device makes you look akin to the people that take pictures with iPads. It just feels a little weird and is too heavy for any sort of quick photography or quick reply to a text message. It feels gargantuan in places that it shouldn't.
I never believed phones have to be "one-handed" to be proper in function and form, however, the girth of the Plus makes it extremely difficult to pull out of pocket and take a quick picture or send a quick text message, or, in rare situations, actually talk on the phone.
I have a Plus and like it as a tablet replacement, but not as a phone replacement. I will be getting the regular 6 on Friday because, in the end, I think for the portability factor, the 6 wins out.
I don't use my phone for a lot but web browsing, texting, and watching videos — but I do those on the go, which should be a smaller pocket size. I have my Mini to do those without the worry or need of preserving battery.
The phone is just a little awkward to handle at times, and even if you master Reachability and the other twisty-hand tricks, it just makes me realize that I shouldn't have to do those tricks in the first place for a device that small. The weight is also a huge deal for something that is to be used one-handed a lot of the time. I won't bring up the risk of it bending, because it's overstated, however, it has happened, so for people that store their phone in their tight pockets, they should be a little aware of the risks that come with the tall and thin Plus.
I think for anybody in doubt, they should likely go with the regular 6 unless they are totally experienced in large-screen phones. I gave my Plus about two weeks before I realized that I need a phone and a tablet and not both in one, although it is a compelling argument, I don't think the Plus is small enough to be wieldy to function as a mobile device out of the home.
I still really like both devices, but the Plus needs a smaller footprint to be totally worthwhile, without compromises, to bring in the dream of a 5.5 inch phone. Maybe they'll make it shorter for the iPhone 7, and then it might be worth looking into. As it is now, it's too tall and heavy.
