Pex crimp tool?

Joe, i used pex crimp fittings a while back and couldn't get it to not leak. A plumber friend of mine loaned me his professional grade crimper and got it not leak. I was left with an uneasy feeling about pex fittings. A week or so ago i discovered pex has a new system that does not crimp, it has a plastic band that squeezes the fitting. No more crimper, the new tool opens the end of pipe by flaring and you quickly put them together before it closes. I'm sold on the new way and my plumber friend told me its all he uses now...leak free.
I think Milwaukee makes a batt powered flare tool or the cheaper hand tool works.