I've been using a slightly smaller windows 10 tablet for years (9.7 inch). Used plenty of androids before that. Scaled up the UI, installed plenty of apps and games, and the only time I ever feel like using a mouse or keyboard is if I am playing non-touch games or writing something long.
But you know FB, twitter, insta, Netflix, spotify all that, it's golden. Got kodi, lotsa shows, a bunch of touch games. Keeps me busy every time I have to take a bus.
The new swipe touch keyboard in windows is a bit buggy. It stops triggering sometimes. I'd like that to be fixed. It's good to have shape writing, but it's a shame it only works some times. PITA to to individual keys for a FB post or something. Other than that, the only other thing I would change is to get instant on. When there's windows on ARM tablets, I'll probably get one just for that.
But for consumption it's perfect. With the go, you can of course use the pen as a mouse as well. Which because it does "mouse over" opens things up a bit too.
My only thing with windows as a tablet, is that you gotta get it scaled right, get all the software set up, and avoid those older legacy apps that don't scale right.
You know run edge, not chrome. Run FB app, not the website. Run Kodi from the store, not the legacy version. Fruity loops not ableton. Stuff that is touch oriented. If your on a windows tablet, you gotta get in the habit of using your device in "the touch way". And if you don't already, that means digging into the store and getting all the right apps.
There's no way you just want to use the exact same software as laptop style (you need to have UWP apps etc from the store in tablet mode), and you shouldn't use it at default scaling or resolution - you want all those icons, tabs etc to be big enough.
Bump it up. 150. 200. 250 - until it's comfortable to hit that top right x without using the edge of your finger.
I don't personally use tablet mode.
I love it compared to android because I can use a desktop teir browser, switch tasks easier, multiple tabs easy - I can play desktop teir games like civ V, trine 2 etc, do professional apps touch only like FL studio, and illustrator - just has a whole lot of power, way more periperals and basically none of those pesky ads.
For me it's like - in a tablet these days, people want something more laptop teir - something that can do more than a phone, more feature rich. ipad or windows depends on which way you swing.
But yeah, I think it's a good experience, so long as you change your habits on the device, to match touch input (barring the virtual keyboard which still needs tweaking - the again, if you have the stylus, you could just use that?).
Stuff that doesn't scale well to touch, you can't do on other tablets anyway. But for me, you know, I never used to use windows store apps. Now I use them even on my desktop. Like every day, all the time. But switching to that way of doing things, using the edge browser, these were all habit adjustments.