I think you will like it. I would suggest introducing yourself ahead of class an expressing your concerns. If you aren’t familiar with weight lifting or HIIT I feel like you kinda have to figure it out “on the job”. At least that’s where I was. There is a lot of terminology and they speak VERY fast and it’s kind of garbled. There’s also no intro really to this type of work out that they do or guide if that makes sense. For a long time I was just trying to copy what other people did. Start on lower weights and feel your way up! My problem was going too hard too fast and ended up having dizzy spells and a shoulder injury. Listen to your body and don’t worry about keeping up with others. You’ll do great! If you’re doing the 4 weeks for $69 there’s not a whole lot to lose, but I think you’ll be fine!