I have been going to Mint for at least 7 months now for regular manicures and pedicures and I have been satisfied everytime.
There were 2 ocassions where I they pushed/cleaned my cuticle was too much and it started bleeding. It wasn't too bad and person working on my nails sincerely apologized - so I'm totally fine with it. And to be honest my skin and nails are kind of fragile and thin so I can see it happening if you go too far with the cuticle push/clipping(sorry for the wrong nail jargon as my knowledge with nail stuff is quite limited).
I give them 5 stars because I really enjoy going there to get my nails done. Mint's location is far from where I live ( the SE), but I will take time out of my day to drive there because their service is superb. In addition to their awesome service the atmosphere in mint is modern, clean, and friendly.
So I definitely recommend Mint for a relaxing nail spa day! :)