I love this place!
I had my first hot yoga experience (well, actually, it was my first time doing any sort of yoga) here about a year ago. I was a little worried that I wouldn't be able to handle the heat, but the staff was very happy to answer all my questions and made me feel a lot less nervous prior to the class.
I was very relieved that not everyone in the class was a pro. People were all different levels, but it definitely felt as though we were all just there to enjoy the class and make the most of it. There wasn't any judgement for those of us who were just starting out.
During the class they come around and help you if you're not quite in the correct positions. You can tell them beforehand if you'd prefer that they just leave you be, but I found this to be very helpful.
My first class was a very positive experience and I have returned to this yoga studio (and also their location at Yonge and Sheppard) several times.
I would highly recommend it for beginners. They also have classes on Friday evenings and Sunday afternoons that are cheaper. However, keep in mind that these classes fill up quickly, so get there early!