This was one of the first things when I decided to start feminizing. It wasn't entirely foreign, as I'd shaved various bits here and there fairly regularly, but it was the first time having everything done all at once. It was really weird at first, but after a day or two I don't think I can even imagine letting it grow back out. I get bumps moderately badly in a few places, but from experience I expect them to stop coming after a month or two of gentle treatment. They're getting better already.
The only thing I don't like is that the lack of hair causes my body odor to change to something that I find unpleasant. Using antiperspirant instead of just deodorant helps a bit. I can't quite decide if it's really a less acceptable odor than before, or just different. In any case, I'm hoping that HRT will reduce or at least change this... the sooner the better!