I posted in another forum and was directed here - seems like a better place for this discussion. We are changing our filtration system and are seriously considering adding a SWGS. We have been given four different systems for our 20x40 inground pool - AquaComfort, Hayward, Goldline and Pentair. I really can't tell the functional difference between them - they do look different cosmetically, but that's all I can figure out. The Hayward one was super cheap (considering for a SWGS) at $899 with rebates. The others range form $1500-$2000, but the more important thing - which one works the best and is intuitive to operate for a novice like myself?