I have only gone to this Polished (near South Park mall) so I have no idea what the other Polished locations are like. It is definitely hit or miss with whatever manicurist you get when you walk in. I've been several times and have had amazing results and then other times my shellac will start peeling after the third day. I suggest finding someone you like and making an appointment with them.
Amy is my favorite and always does a great job!