I bought a package of 5 but have only used 3 - I'm kind of on the fence about it. I did like the girl who did mine - I think it's better to have someone doing it by hand vs in one of the booths that are automatic. Just really watch those areas that "soak" it up - use the pre-tanner lotion on your elbows, hands, ankles, knees and feet. I did have some odd streaking and I didn't like how my feet turned out once. Also, they do have an indicator in it that makes you look REALLY dark for a few hours and you aren't supposed to wash it off for 4-6 hours. Trust me when I say - get your tan and go home because you'll be embarrassed to go out looking THAT tan. I felt like that lady on "Something About Mary" - I think her name was Magda - too dark and odd looking!
I'll probably save my other two for in the fall when my more natural tan fades.
I always use self tanner on my face, however - I use Estee Lauder for Faces and really like it so I don't think I'll have my face sprayed anymore.
Good luck!
Heidi