I use a ThinkPad X200 in my office with our EMR. I compared the ThinkPad to a few other tablets before choosing it, and feel that it's among the best tablets available. I particularly like the fact that it's lightweight and portable. The only real downside is the pointing stick (I'd rather have a trackpad), but with the touch screen, I don't really use it anyway.
Honestly, though...if I weren't using it with EMR, where the touch screen comes in very handy, I would have little use for a tablet. I never use it in tablet mode, since I like to have the keyboard available. It's basically a touch screen laptop for me. Unless you really think you'll take advantage of the touch screen, I'd suggest you consider a "regular" notebook and save a bunch of money.
Incidentally, my partner uses a Fujitsu tablet (I'm not sure of the model off the top of my head), and seems to have more trouble with dropped WiFi connections than I do. From what I've read online, this is a common issue with the Fujitsu.