I'm a big, lumbering, 6'4, 270 pounder. Not 'quick' by any means, but I do throw very hard punches that move mountains.Watched a few videos of this on youtube, average sized guys working it hard and the BOB unit wasn't budging. There were also some videos of guys 'showing off' at how presumably harcore they were for knocking one over with a huge running kick. Could it truly be stable enough to withstand repeated, full power striking from a heavyweight? I was really hoping that to be the case, since I live in an apartment and a 'rocking back and forth' base wouldn't be acceptable to downstairs neighbors.Got it, filled it with a water/sand mixture for max weight (it is heavy as heck) but intuitively I just wasn't seeing it staying put to a hard punch, given the mechanical advantages involved with that narrow and round base, the long, tall body unit. Sure enough, no sooner than I laid a medium straight right on it, the base instantly tilted up from the floor and the whole unit started wobbling pretty good, which probably sounded like thunder to the poor people downstairs.Still, that aside, I do rate this pretty high.I now use it more for speed type work and striking accuracy practice that doesn't involve hitting hard enough to move the base, then just use a heavy bag at the gym for power striking. The result of having this in my living room and using it for striking accuracy is that my striking accuracy has gotten insanely better.So, overall, 4 stars of 5. I deduct the one star since I think they should probably be a bit more forthcoming with the facts for us big guys, if you're over 200 and/or a powerful striker you're going to wobble it but as a training tool, it's pretty damn good.
Rating: [4 of 5 Stars!]