Kevin Y.
Yelp
I've been climbing for over 5 years now and have been to various gyms in Northern California, SoCal, and New York, so I'd like to think I have a decent sense of how gyms are normally set up.
SB Rock Gym is technically located on State Street, and is a bit hard to find even with the assistance of navigation. it's tucked in a corner near the walkway for the tunnel, and is impossible to see from the road. The best way to get there is to park in REI's parking lot, and walk down the street and turn left onto State until you see it.
The gym is priced fairly, and the half off Fridays make it a really good deal. Even on fridays, its never too crowded, and you can always get your workout in. The gym utilizes it's limited space well, and the bouldering rooms are one of the best I've ever seen. The bouldering walls have unique terrain and route setters make great unique routes that work with it really well. And its updated pretty often!
The top rope on the other hand... The top rope is pretty much glorified bouldering with a rope. The entire corner closest to the window is just a mess, with incredibly short routes. The parallel walls in that corner are too close to each other, making it a tight space for belayers. Routes are not updated frequently, which is especially important in a smaller gym like this. Don't get me wrong, the top rope is great for parties and kids who wont mind the shorter height, but for more experienced climbers it really doesn't cut it.
Overall, an amazing gym for bouldering, but the top rope isn't up to par.
Also, pictures are incredibly misleading for getting a feel for the size of the gym.