LOVE this place! such a welcoming & peaceful atmosphere. this was my first time seriously trying out yoga, and i fell in love. most classes offered are in the vinyasa style, and are pretty intense (in a good way)!
http://yoga.about.com/od/typesofyoga/a/vinyasa.htm
i would recommend trying one of the yoga basics classes if you are totally new to yoga. however, the beautiful thing about yoga is that it can be adjusted to every skill level, and the instructors here are all super nice & helpful.
to sum up: the classes are challenging but also incredibly rewarding; the atmosphere & people are full of positive energy. and if all of that isn't enough to convince you... there are free baked goods every day, and they are always delicious! cookies + yoga... can't go wrong with that combo ;)