What are the best Palo Alto studios to drop in on a hot yoga class?

their hot yoga classes are my favorite. The studio is clean, the classes are generally not too crowded, and the flows can be intense but you can easily adjust to a level suitable for your practice. I particularly enjoy the Lisa's "hipster flow" ...

http://www.quora.com/Yoga/What-are-the-best-Palo-Alto-studios-to-drop-in-on-a-hot-yoga-class/answer/Tracy-Chou