I had a blow dry and a treatment, something I often get at a lot of salons. It was relatively ordinary, my hair didn't feel as soft as it usually does after a treatment and the blowdry wasn't styled spectacularly.
Visit was really good and got several compliments on my blow dry throughout the day! I think it would be good if a glass of fizz was offered throughout the day rather than just after 5pm in weekday/2pm weekends as I think it adds to it being a treat! Other than that, I wouldn't change anything and would definitely return.
It would also be good to offer the 15 minute £15 blow dry like Hersheson's do for people who are in a rush!