I'm also using the Lenovo with an Atom processor. From a hardware perspective, it's netbook-class computing. But Win8 kills performance and eats memory. Word literally lags text as I type, and opening very large PDF files (Autocad architectural drawings in my case) kills the CPU. It's just too little horsepower to be much more than, in your words, a dumb tablet. I've also been through two units already and on my third. Screen quit responding to input on first, CPU failure on second. My third is behaving fine, but performance and responsiveness is anemic.
iOS was built in conjunction with the hardware for the devices when it comes to iPads, and it shows. Not true with Windows tablets. Microsoft is way, way out over their skis in this arena and continue to attempt to force-fit the desktop paradigm into a completely alien (to them) form factor.
If Android can escape the "its just a bigger phone" paradigm for tablets, they will destroy any chance of Windows tablets ever escaping Enterprise IT confines. But until/unless that happens, no contest.
I do like the form factor of this Panasonic toughbook tablet, however. Dang near indestructible. Too bad the only way to achieve this with consumer-grade iPads is to clad them in so much rubber and metal that you ruin the user experience.
You should really send that unit in for repair or replacement. I've never had Word lag on me with an Atom tablet, I'm quite impressed how smooth it is. In fact One Note using the digitizer is quite smooth, even on fairly large documents, and that takes a lot of cpu. Photoshop runs quite well on it. Even things that my ipad could never dream of doing like having a crap ton of tabs open in a web browser my atom tablet does with complete ease, ie no lag, slowdown, checkerboarding, reloading of website, etc, all things my ipad does. Granted I'm talking about an ipad 3, which to me runs like utter crap when it does all those things I mentioned. I'm sure the ipad 4 runs better, but hey it only took them 4 iterations to do what the atom tablet does it's first run out, you can only imagine the second run with the Baytrail CPU's. I can honestly say that my ipad 3 runs like "utter crap", I've been forced to use it for a couple of weeks because my daughter dropped my wintab in the bathtub and I have to wait for squaretrade to send me a check, and I am utterly disgusted and depressed each and every day I'm forced to use that complete POS. Sorry to be blunt, but if I never have a webpage checkerboard, or a tab reload, or my entire browser just force shut itself down again I will be the happiest person in the world. Hardware built in conjunction with iOS my a$$.
I highly disagree that MS is overclassed. Now I have my misgivings about the surface Pro, I make no secret about that, and I also make no secret that I think Win RT is complete and utter junk. But my atom tablet runs rings around my ipad 3 in terms of responsiveness and power, and that's not even to mention the incredible library of legacy programs which completely dwarf the iOS market.
MS problem isn't so much hardware, it's being complete morons from a marketing standpoint. Confusing the market with WinRT, then putting all their weight behind a niche jack of all trades master of none in the surface Pro, and releasing an unfinished OS in Windows 8 all converged to make them seem stupid, which they are. If they had put all their strength, marketing, and hardware wizardry behind the atom tablets I think we would have a MUCH different story, yes that's how much I stand behind them and their performance. Of course the reality is that MS fubared much of this and it's hurt them badly.