I had Shellac manicure 3 days ago. Generally the atmosphere and the people working were friendly, but I think it's the cheapest in the area for a reason. There wasn't a lot of attention to the detail, and with Shellac you need that, as you want to keep them for longer time.
The top coat wasn't applied properly, which means there were parts on the nail that weren't shiny, so I had to put an extra layer of top coat at home, which of course isn't Shellac.
At least I hope they will last for more than a week.