i purchased 2 of these. why 2? so me and my wife can exercise together, so my daughter can hop on one if i decided to exercise, and because they are cheap enough to buy 2.
Assembly was easy enough that i probably could figure it out without any instructions, but instructions are provided.
i am a fat guy 350lb 6'1. i have only used for a few days but I like that it feels like it can support my large body and the foam offers nice support as well. I'm not completely out of shape, i do weekly cardio at a local gym and lift weights at home but neglected my core for a long time.
aside from the ab workout i also feel like I'm exercising my lower back which has eased some of my discomfort already. elastic bands have been included for arm workouts and while i appreciate their inclusion they aren't that practical. i get better resistance using free weights but if you only want to tone your arms instead of strength training then the elastic bands are fine. it is currently a fun way to engage in an age old exercise i hope the novelty doesn't wear off.