I did it this summer finally! It is a weird experience that's for sure. It all happens so quickly and whatever you do, HOLD YOUR BREATH. If you inhale the stuff it stinks and makes ya cough.
Overall I was semi-impressed with the results. The place that I went to made sure after I tanned that my feet and toes and hands looked okay. They helped me remove some of the excess and then reapplied to some of the areas I missed.
The only down fall (well two downfalls) is a) you cannot shower for like 10 hours. So I recommend going in very early in the day. b) it doesn't last as long as it should and I found some areas to go white faster...like the backs of my legs for instance and my bra area (cuz that's restrictive clothing that rubs all the time).
I did go back a few days after because I wanted to be darker...but that's when I thought I got sorta blotched. I dunno. It's a VERY nice result as far as something instant...and I didn't have to burn myself to look tan for once