Brooklyn Boulders is my favorite climbing gym in the metro area. 18,000 ft^2 of bouldering and climbing walls, evening yoga classes, a slackline, and a bunch of weekly technical climbing classes. The staff is great and the routes are fresh. The place is always packed but it's large enough to still feel cosy and the patrons are friendly.
This is a really well-run, well-organized, and solidly built climbing facility. There's plenty of climbing space that accommodates a wide range of difficulty levels. Warning: climbing is crazy addictive.