Careful, Glen just wants to squirt you with his sprinkler!
We had one of those Polaris units at an old shitty pool we had at another house, and I had the same issue with it constantly tangling, no matter what we tried. I hated that wee sucky bastard.
We just built a place with a new, non-shitty pool and got one of the robotic cleaners. It's a Dolphin S300i. I call it "Angry." We've only been using it a couple months, but thus far I have been much more happy with it. It doesn't tangle around the cord, and it's nice not to have an auxiliary pump to worry about. I very much like that it crawls up the sides and brushes the waterline. We don't have a lot of leaves in the pool, but the basket can go a 2 or 3 cleanings for us without getting over-full, and it's easy to clean.
The only negatives so far are that we're having to have an outlet moved to allow it to stretch out to the farthest corner of the pool, and that for whatever reason it doesn't want to crawl up onto the tanning ledge, or whatever you call that shallower area. The "i" feature is pretty overrated as well, as it's just a bluetooth connection, so it's not like you can turn it on from very far away from the control box, and the app is crashy on Android. They are also expensive, but IMO easily worth double the price of our craptastic Polaris experience.
Roll cheesy promo video: