I went in for a Hollywood wax and was seen immediately. The staff was friendly and seemed to put effort into making the process not too painful, which was nice!
I have been to USA star nails a few times and each time the staff are polite and do a great job at my manicure and pedicure as well as being a little chatty it's not awkward but not so chatty you feel you have to participate in a long conversation. Great Brahe of couloirs both normal and gel. I would definitely recommend for a reasonable price in London.