I've been going here for over a year and a half now and it's by far my most favourite nail salon. I've been to many before, and I have yet to find one that does shellac manicures as good as they do for just $20. Not to mention their pedicures are also very thorough.
One of the things I really like about them is that they don't sand your shellac (or your nails in general) without asking. I hate leaving salons that leave my nails feeling soft/weak due to sanding.
The only downfall is that they get super busy. I'd recommend calling before you go in or you'll be waiting 30-45 minutes.
P.S. they have a wide variety of colours!!