My husband (lowflier03) and I are stationed in Atsugi now. He's with HS-14, and right now he's floating somewhere on the Kitty. If you have any specific questions let me knwo or send me a PM.
As far as restrictions, there aren't really any. If someone screws up they'll screw liberty for everyone else until the uppers think they've learned the lesson. Our squadron had an 2300 curfew a while back because of some stuff people did, but that was lifted, and its back to 0100 I think.
We/he volunteered to come out here, and we don't regret it. We're both still getting used to the dynamics in the squadron because this is his first tour in the fleet (not in a training squadron) and this is my first experience as a Navy wife. We got married right before we came over.
Like I said, if you have any questions feel free to ask. You can PM the hubby too, though he doesn't get a chance to go on much unless he's in port.