Thank you for your thoughts Bank and Bobby, I appreciate your input! Everyone seems pretty happy with their robots, but like Bobby, I could see myself leaving it in the pool for long stretches. I don't think I'd leave it in all the time, but I could definitely see my self leaving it in overnight or for a few days at a time. Not necessarily intentionally, but if I drop it in at the end of a day in the pool, I'm highly likely to forget to pull it back out until the next day or the next time I get in the pool. From what I've read it sounds like that isn't good for longevity. I could try really hard not to forget it, or I could just go with the Polaris and not have to worry about it. I'm still really on the fence about this one.