I have an Aquabot Pool Rover Plus which I absolutely love. I use it maybe 2~3x/week as I have above average debris falling into the pool. The Pool Rover Plus does an absolutely a beautiful job picking up even the smallest junk out of the pool.

As happy as I am with the Pool Rover Plus, I am considering purchasing a Polaris 360 or a Letro Legend II (non booster pump pressure side cleaners) to just leave in the pool so the pool is constantly being cleaned when the filter is on. I'll just take it out to swim. Are there problems with this approach? This would be to compliment my Pool Rover Plus (I'll cut back usage to ~1x/week instead).