#3 and I got our hair cut the other day. I'm still getting used to mine. I didn't go really short, but rather almost a layered bob. I'm not sure if I like it or not. If I decide I don't, I'll go and have it trimmed up a little shorter in a different style.
#3 loves his. It isn't quite a flat-top, but pretty darn close. The only thing he required was that it was short enough that if he doesn't brush it, nobody notices.
Ah, to have such simple needs again...