There's a pretty good discussion going on right now in the Connectedly forums where jsntrenkler posed the question, "Do you own a Philips Hue?" I personally have yet to pick up a set, but Kevin has quite a collection and is a big fan of them. I do love Hue, from what I've seen at least, and I'm getting closer and closer to pulling the trigger.
For me, there are a few things holding me back. Currently I don't have very many lights that I actually use most days (kitchen, living room, bedroom) where I see a need for Hue. I'm also not too keen on adding yet another bridge to my setup — I already have one for my Nexia system and Sonos as well as my Fios modem and router. It's actually kind of crazy how many bridge/router devices I have in my living room compared to other devices.
I do like the idea of Hue, I'm just not sure it's for me. I'm almost positive that my wife wouldn't care about it enough to use it, and even though they still can function as "standard" lights, it would lose a bit of luster for me. If you entertain often or have a sweet media setup I can see them being a great addition, but for now I'm going to wait it out.