I bought the cheap black friday rigid from home depot for $49 and have been pleased with it. I have a koi pond and purchased an expensive pond vacuum however. If you live in an area prone to flooding, it's pretty incredible. Instead of shutting off when full, it has a discharge hose. It can run continuously while vacuuming. Meaning it fills up and then empties itself while running. Would be a godsend if you ever experience flooding inside your home. I hope I never have to use it that way.