The Hot Yoga Lounge is one of (if not the best) yoga studio in the city's core. They have a great variety of classes (all hot) with experienced teachers. The classes are challenging and invigorating. It is a beautiful studio as well with large, clean, and comfortable change rooms. They also offer a range of workshops and hold various types of events. Mat and towel rentals are available.
The only downsides to this studio are that there is only one yoga practice room so options may be limited if you are restricted by time. Studio tends to be quite busy during rush hours giving each person less space to freely move within the studio. I also haven't noticed that they provide additional props such as complimentary blocks and mat cleaning products. Street parking may be an issue at certain hours if you don't walk there but it's not that difficult to find.
Overall, highly recommended.