I bought dd a kindle fire when she was 2. I bought the regular one bc it was cheaper and bc, at the time i bought hers, you couldn't get the kids version with anything but 8gb and I wanted 16. It's held up fine, although the charging port is a bit wonky now, which is a big complaint with these.
As for using it, my dd plays a few games, but mainly uses it for watching videos. It's a lot harder for her to navigate than an ipad. I wish it was more user friendly for little ones. My dd has a hard time getting back to the home screen, although she's getting better at it now. For the price, it's been a good little tablet. It doesn't compare to the ipad in any way, but I wasn't willing to spend the money on an ipad for a 2 year old.
I got mine on sale (not black friday though) I got the kindle fire 16 gb for $49, the kid proof case and a 2 year warranty...all of for under $100 USD. Oh, and my dd has dropped it many times and even spilt a bit of milk on it and it's still in great condition.