Superbly DELIGHTED !!!!! really effective, in 2 hours time to empty my husband 3 times this cleaner / bottom cleaner pool and it really lives up to its name !! We have an above ground pool diameter 4.60 M and a limestone deposit was formed at the bottom, my husband could not clean it properly and then hop !! this pool vacuum is perform and I highly recommend it's amazing !!! By cons there is a problem, because the robot does not have a well-shocks our liner is a little bored, we will try to paste skates chairs or other? If you have ideas, not ésitez me know by fast MERCI.Livraison, amazon Thanks