"The S.M.A.R.T Punching Bag" - Opinions?

[FJRGerry]

I'm thinking of buying this heavy bag as a replacement for my old standup bag which broke in half from me using it for grappling practice. Just looking for opinions.

http://www.best-punching-bag.com/


An example of how I was using my old heavy bag & would want to use the new heavy bag:

http://www.youtube.com/watch?v=5BAr5EPDYCk


Thanks,

Gerry