So interesting how cardiac rehab differs for everyone. I loved it, and it was covered by my insurance. I was 41 and a runner, so it allowed me to be comfortable knowing I was monitored. They also had me doing light weights. I was eligible for 36 sessions but had to stop early due to work commitments. I think I did 24 sessions, so about 8 weeks. I started 5 weeks post op. There were all different ages - from 20's to 80's. 2 nurses and 2 physical therapists -with top notch equipment- and depending on the day, sometimes 8 patients at a time, sometimes 2 or 3. The nurses were also helpful answering any questions that came up (weird bruises, medication questions, etc.) and they interfaced with my cardio. If it won't cost you much, I would recommend it. I did visit one other rehab and there was a marked difference in quality of staff, equipment and environment. I think I was very lucky.