DOLPHIN Quantum Automatic Robotic Pool Cleaner with Extra-Large Filter Basket and Intense Waterline Scrubbing Power, Ideal for In-ground Swimming Pools up to 50 Feet

I had my doubts, I have a pool that does not have a straight or flat area. My pool is gunite which I thought would be a problem with a machine that was gong to use suction and rubber treads to climb the walls plus. There is a bench in my pool that wraps around one side for sitting in the pool. But after a bad year of leaves and a ton of pollen I decided to see what was out there. The Quantum was brand new and up there in price but it was totally worth it. I gave it a workout since I had 30 days to return it, no questions. While waiting for my Quantum to show up (about a week) I let the pool go. It was a green mess chemicals would be needed (don't use any if you $$ Quantum is in the pool) But I wanted to see what it could do. It stirred up a lot of muck but the Quantum picked up a lot of green muck. Also the Quantum has active tracking and mapping so if something is in the way it will go around it. Also it maps out the pool so it can hit everyspot. It maps out the pool actively seeing where it has been and where it's going. The Quantum has a large basket for leaves, you pull it out and hit the leaver dumping out from the bottom, take a hose and rinse. It also has two sets of filters one for regular days and one for those messy days. The power cord is around 60 feet plenty for what I have.