Boulders is a very nice gym for bouldering, not so much for top-roping. The place is expensive, which is why I usually climb at the Sett in Union South.
The bouldering route selection is very nice and their ratings are accurate. I've only been twice so I don't know how often they change their routes.
Top-roping is a bit of a mess, routes are short and they get way too busy way too quickly.
In general the place is really expensive for what it is and I've only been there through discounts. Every night they have some 10$ tickets for certain categories (e.g., students on Tuesdays). They have a 10 punch card for 110 dollars which could be a good idea (doesn't include rental, which I don't need).
I'll go back again every other month.