I got a Blue Diamond robot cleaner this week and have used it a few times and I can say that it's great!!!

It doesn't get hung up anywhere on my pool, not even the ladder and it leaves my pool cleaner than ever before.

My older (1 year old cleaner) Polaris 280 is a joke compared to this thing. I'd leave my Polaris running all night and it still would have spots it would miss or would have gotten it's hose tangled up and not clean anything but the blue diamond is done on 1 to 1 1/2 hours easily.

The only thing it doesn't get is my steps but I really didn't expect it to.

My pool is an 18x36 rectangle in ground vinyl pool.

Highly recommended from me.

Russell