Lasering Fine Hair Instead of Coarse Hair - Does it Work?

The receptionist girl that answered the phone didn’t seem to know. She said I “should be fine, as long as the hair is dark.”

Has anybody had any experience with lasering fine hair?

I want to get my whole back lasered but I have very very fine hair on my back, and I’m embarassed to be going in there as a girl to get my back lasered!

Back costs $299 if I pay for their Elite Membership, which gives me a discount on all LHR. Anyone w/any experience?