Can't say as I've seen the triple ball roller in action, but I bought my wife one of their double rollers.
A couple months after purchasing it one of the balls that holds handle in place fell out rendering it a 2 ball tote. She emailed Elite, guy said they had fixed a problem with something in the handle design and sent her a replacement, told her to keep the other.
Besides the annoyance of me carrying around the two balls for her while waiting on UPS, I was impressed by the fact they stood behind their prodcut and were nice about making it right without a lot of hoops to jump through. Seems to be a rare thing these days.