I have to chime in with my experience, especially since over the past year I've posted a few times that Windows 8 doesn't look so bad and that my next computer might be a Windows 8 convertible.
So I finally did it during a Boxing Week sale. I bought a Lenovo Yoga 11S. I sold my iPad, too, thinking that this one device might take care of casual browsing and light duty computing. The touch screen and the ability to flip the laptop around into tablet mode were compelling.
And then the trouble started...
Let me say one thing first - I am not wilfully ignorant. I have used some version of Windows (since Windows 2.0!) almost every day for the past 20+ years. I know my way around both Macs and PCs.
So at first I was excited by my shiny new hardware. Set up the WiFi, easy enough. Then I went through the setup procedure and it asked me for a Microsoft account to tie my login to. Some minor "forgot my password" complications, then when I finally typed it in: "Sorry, the operation could not be completed." Um. OK.
So I decide to try the included apps. Dragon Naturally Speaking took about 5 minutes of training to adapt to my voice. Now I could do voice dictation! Except that it came out horribly, laughably, wrong. OK, whatever...
I try some other included Lenovo apps. One of them just hung and hung. Another crashed on startup. Another app worked OK, but whenever I was holding the unit in portrait mode, it insisted on running in landscape mode. Which is fine, some apps only run in one orientation, but this one changed the whole machine to landscape mode, so I had to jiggle it back every time. Another app insisted on software updating itself every time I tried to use it.
Ah, software updates. So Windows Updater said I had 83 outstanding, important security updates. OK, update all, says I. The PC starts downloading updates. 0%.... 0%..... 0%..... it sat at 0% for hours before I decided it wasn't working.
You know, I think to myself, this must be Windows 8.0. Everyone says 8.1 is much better. Maybe I ought to update. Turns out, I can't, Windows 8.1 doesn't show up in the App Store and it apparently won't until those software updates complete. I try again. 0%... 0%....
Meanwhile, I fold it up into tablet mode, sit on the couch, and start surfing. Which is kind of fun, except that 768x1366 (portrait) is an awful resolution to be surfing the web and everything is pixellated and ugly. And to top it off, every time I open a new tab, there's a "popunder" tab created next to it full of ads for online games. A virus, you say? Spyware? Rogue JavaScript from shady websites I visit? No! The popunder tab features Lenovo stuff! They set up my browser to give me extra ads!
Then I look at the battery meter -- 4 hours left? Didn't I just charge this thing? Oh right, the reviews say 5.5 hours is about the most I can eke out of it.
This is roughly when I started thinking to myself, you know, the touchscreen is kind of nice but what am I giving up for it in trade? Poor, buggy software, a crappy display resolution, mediocre battery life...
I did the math. A 13" MacBook Pro is just about the same dimensions, thickness, weight (well, it's a bit heavier), has a much nicer display, much better CPU, runs OS X, and can get up to 15 hours of battery life. No touch screen... so be it.
The Windows 8 machine went back to the store 24 hours after I bought it. I got the MacBook Pro instead the next day.
(And 5 minutes of software updating later, I was fully up and running.)