We have owned suction cleaners in the past (KK classic and Great white). KK wore the ink off of the liner at it's usual hangout under the pool ladder and the Great white was afraid of the 6 foot deep end, he liked hanging out by the steps in the shallow end. I had given up on the automatic cleaners and just hand vacuumed for the past 4 years. We are changing our liner in the next few days and thought that, while I'm spending a little money, I may as well spend a little more and try another automatic pool cleaner. The dilemma is...which one to go with? I thought I had narrowed it down to a couple of suction type...Hayward Pool Vac Ultra XL or Pentair Warrior, then my wife stated she was interested in the robots. Could you all help us out by letting us know what type (suction, pressure, robotic) and make/model you have and how long you have had it? I would also like to know what you like about it, what you don't like about it (c'mon, there's gotta be at least one thing that bugs you), and any costs you have incurred for routine maintenance.