I've been excited to try SoulCycle as soon as I moved to Toronto. Knowing of their reputation as a spin cult from New York, I was eager to try it out and see what the rage was. I'd like to add that I am somewhat inactive when it comes to biking/spinning, and hadn't had any real cardio exercise the entire winter (I've also just never tried spin classes before this). Soul absolutely kicked my ass, but it was perfect. It was extremely fun, exciting, a huge boost, and I felt great afterwards. I didn't feel like I was unfit or at all self-conscious the entire time, and have even gone back after the first time!
Tip - first timers get a discount, so make sure to claim it. I see why it's so costly after that, but I truly think it's worth it, especially if you want to kick-start your exercise routine.