Hi Orion80,
I don't know if it is too late to reply but here goes...
I had laser hair removal and I am extremely happy with the results! I had it done on my upper lip, actually I had not even threaded my upper lip until then, so the results were truly awesome.
It does not leave any scars. There is a slight tingling sensation just like you get when you have threading.
The duration of the treatment, ie, how many sessions you will have to take, depends entirely on your skin and hair type. I had taken my sessions at Kaya Skin Clinic in Indiranagar in Bangalore. They also have a dermatologist who assesses your skin type before you go for the session.
Hope this helps.
Jyothisri