Glad you made it through, Amy. A guy my husband works with tried it and apparently was overcome by the heat and began to pass out, fell forward and ended up with a minor black eye.
I wouldn't mind trying regular yoga, but don't think I'd do well in the "hot" class. I've never liked saunas--always felt like I couldn't breathe; I imagine it might feel like that. Our dentist (a guy) goes to the hot class and loves it.