If you're an all-Mac home, what's the appeal of buying outside that ecosystem? I'd have to get used to Windows again. I would have a very non "native" experience to the content the rest of my devices share naturally.
The one plus is: I could run IntelliJ (I assume). But on a platform I don't normally use, having to jump through hoops (I assume) to get some of my toolchain (ffmpeg, exiftool, graphics-magic) working, with a different keyboard. And then hope it actually works on my main development and deployment environments.
I bought the Pro for games mostly. Love my Kindle Voyage for reading, so I didn't need that. The screen and speakers are awesome for games. I never touch my PS4 because I don't have 2 hours to "get a feel" or "settle into" a game. I've got 20 minutes maybe. So bite sized semi-casual gaming is really the only gaming that's convenient for me these days. I actively do not want a PC for gaming.
It can pull off the duties of all my non-work stuff easily. Photos, videos, web-surfing for a new cooktop. Budgeting and paying bills. Recipes hunting. Grocery app. Sitting on the counter while I'm cooking. It's actually better than a full laptop for most of those things.
I never update drivers. I don't have to configure anything. iOS could definitely do with some sort of multi-user sign-on experience, but it's not a hindrance for me personally.
For a home machine, if you don't want to play full PC games, it's about the best thing going (for a Mac user) IMO.
I picked the Pro (a few weeks ago), for three reasons:
1. Microcenter had it for $100 off MSRP.
2. For every great iPad keyboard, there's 3 or 4 mediocre ones. A first party keyboard is a big deal.
3. I like comics/graphic novels. Reading a full panel the way it was intended is really nice.
I would very much recommend this device to my older in-laws. It's everything they're used to, and more, and not missing anything they need. Price aside, there's really not much to complain about.