I have become a huge fan of Bikram Yoga. I find the asanas flow nicely and I love the heat. At 104 degrees I begin sweating within about 10 minutes of class.
This studio is large and well equipped. There are changing rooms and showers and it is well kept up. If you happen to forget the bare necessities when coming to class you can rent a towel and they will provide you with water. I can't for the life of me see how this happens, but they have you covered if it does.
The instructors are all a bit different, and all very capable. (Gemma is my favorite).
I keep coming back here over other places in the valley because I really enjoy the class packages. You can buy 1, 5, 10, 25, monthly ect.. It is very flexible and there is no time limit on them (obviously other than the monthly packages..) They often run specials 10-20% off so signing up for the mailing lists is fruitful.
If you have never tried Bikram before make sure you bring your mat, a towel and water and come WELL HYDRATED.
Good luck, and Namaste!