This is by far the best pilates studio in the city. Not only is it clean and open with lots of light and overlooks beautiful streets of SF, the instructors are all Stott certified instructors and they're all fantastic. I have never had a bad class and I've been going there for a year and a half. The owner is an instructor/trainer for Stott pilates. She has been featured in the Today show, Good Day NY, New York Times, Washington Post. Try it, you'll love it.