My 1 year old PB CG just quit working. One month out of warranty! The only real repair option is to replace the battery/motor pack. In the CG, this is $139 (direct from WatertechCorp), the Max is $89. So, if you are going to use the PB only for light pickup duties (cleaning corners after your normal cleaner is done), then you might want to lean towards the Max.

I have contacted WaterTech and asked what they might be able to do for me since the unit is basically only a year old. Hopefully we can work something out, I'll let everyone know. I love my PB, but $139 replacement after only a year is pretty severe...