It's hard to recommend an older model when a Xbox One S is around the corner and expected to sell for the same price.
In general I think that the Xbox One is an attractive console at this price for the undemanding gamer. You can buy it for $250, subscribe to Gold for $60 a year and you get about 4 games a month to keep. Great inexpensive gaming gift for a kid. With keyboard and mouse support underway, aimed at PC style game control but hopefully usable for the UI, it could likely even become a PC alternative, at least for web browsing and applications using the Edge browser. (But that's just speculation on my part.)
Personally consoles don't get a lot of traction in my house these days. I have a Wii and a 360, and they both get some gaming, as well as LEGO games on my HTPC, but the kids and myself still normally prefer the tablets, and for console style gaming the HTPC with 360 wireless controllers works decently. Kinect does get some occasional use (in fact, it's the main use of the 360), and unfortunately Kinect games for the 360 aren't compatible with the One, or I might have been tempted to buy one. Still, even if I was planning to get one, I'd wait for the S, to have a console that's less bulky (and slightly more future proof).