I love Galvanize. I've been here for several months now and I've been the most productive I've ever been in a rented office setting.
The location is great. The employees are incredibly helpful. They really do go out of there way to ensure you are getting the value of your membership. And the amenities are fantastic. For $250/month, the lowest membership, you get 24/7 access, internet, coffee and snacks, printing (B/W and color) and free access to VERY nice conference rooms.
There are two added values which really make a difference. One is the atmosphere: you are working among other professionals which, I think, elevates your thinking and increases your energy. The second added value is the networking opportunities. I've met a lot of professionals here that I probably would not in a traditional setting. These unofficial introductions have paid off for me in huge ways.
Highly recommended!