Well my 360 worked fine at first, in fact I owned it for about 3+ years before I sold the house...but only after about the first 6 months the hoses started leaking. Replacement hoses were no better and arent cheap. It seemed like I was repairing a section of hose all the time...Then the wheels, they dont just wear down, they start disintegrating into a sticky white mess. Next thing I noticed was the drive mechanism, I had to have it repaired twice...A wheel would get stuck unless you pulled the cleaner up and rotated a wheel it backward until it "caught' again then it would spin the wheels. Next thing is the metal filter screen. It is in the adjustment valve that you plug into the pressure port in the pool. That little screen will get clogged VERY easily and slow the polaris down dramatically. You will probably be cleaning this weekly, and its not hard to clean, just a pain I'm glad I dont have to deal with anymore. Lastly, into the 3rd year the plastic body became very brittle and cracked in several places in the back, even though I had never dropped it. I found the pieces broken off inside the body. This has been my experience with this cleaner, so there is just no way I can recommend it.
When it worked, it worked okay...the problem is there are so many things after a while that make it not work. Also it would occasionally get stuck, even though it pulls itself away, it would drive right back to the same spot and get stuck again against the corner of the stairs. Not to mention if you have sand or fine debris in your pool, you will need to either manually vac or find a special bag for it.
I just much prefer my suction TPC, the way it spins around it never gets stuck for me. I havent read the best reviews on the pressure version, but at least the suction versions seem to be the cream of the crop with many happy customers and they dont break the bank!
Good luck!