I'm in early construction phase on my pool right now, pre-gunite. I'm seriously considering having the contractor plumb & wire for the contracted polaris 280, but not install it. Instead, I'm thinking of picking up the Dolphin Dynamic Plus from Costco. My goal is absolutely least hassle in maintenance and electricity. I'll shell out a couple hundred a year extra if it saves me part of that in power (no daily polaris pump) and numerous hours of tweaking/reparing the cleaner. Anyone have the Polaris 280 or recently switched from it? It would be nice to hear their recommendation on going robotic.