I'm a bander, and in the first couple of weeks post op didn't feel hungry at all, but then I didn't feel hungry after the first 3-4 days on my pre-op diet. However, around 4 weeks after having my band fitted and at the time of my first fill, I normally feel hungry because even now almost 6 months post op, I have yet to find restriction from my band. However in saying that, while I feel hungry, by making real careful choices about what I eat and when really helps.
Good luck to you!