I use the Poolvergnuegen 4-Wheel Pool Cleaner. As mentioned, it does what it's supposed to do; pick up dirt/debris off the bottom of the pool. If it means anything, I've used it for over 5-years and have not had to do any maintenance or repairs to the cleaner and the hose is still in good shape. If/when it dies, I may consider a robot, but for now it gets the job done.