Oh WOW!!! As I did not get the other DVD's I was expecting, I decided to trick up my old road bike (glory be! The back tire pumped up and stayed pumped!), and pop it on my trainer. I rode with rat traps and sneakers (my bike shoes are in the upstairs closet and I didn't want to wake DH), and did Spinervals # 24 Hillacious (I love climbing). I got one H*LL of a workout! I burned more calories than I do doing LowMax, or IMax 2 - by over 100. And talk about intensity blasts!!!! Think IMax 3 Intensity level with NO impact! What a workout!
I'm SOOO glad the others did not show up - as I would never have done Spinervals! I highly recommend these series to anyone who wants the Intensity of a high impact workout without the impact. I'm definitely buying more.