The entrance to the Scottsdale location isn't easy to find since it isn't marked on the outside of the building so if you go after hours or on a weekend, all the other doors will be locked making it pretty confusing. The entrance you want is the one to the left of the one marked 105. (I posted a photo).
Otherwise, a great experience with capable, super friendly laser technicians and professional, pleasant office staff. I look forward to my next visit here (now that I can find it).