I love how I can feel my muscles working while I'm on my G-17 Hypervibe. Depending on how I stand, sit, or have my hands resting on the platform of the machine, I can sort of guide the vibration up into my body. The "workout without actually working" I get feels thorough and as a senior citizen, I've appreciated how much just standing on this machine has improved my balance and leg strength. The company has been wonderful too: I like the easy to follow, built-in routines shown on the display screen but had some very specific questions about exercise movements I could perform for my personal needs. To my surprise, a half-hour phone consultation with a Hypervibe trainer was included with my purchase. When I had all my questions ready, I scheduled a time with Debbie and she was amazingly helpful and really seems to care. I also had a very good experience with a service tech when there was a problem. It was taken care of right away. I did a lot of internet research before investing in a new piece of exercise equipment because I didn't want to spend hard-earned money on something I'd regret and there's a lot more I can say but I can't say enough good about this G-17, as I am very happy with my purchase!