I would add to the discussion with two cleaners I have generally been delighted with:
First would be the Pool Blaster (formerly Pool Buster) rechargeable hand and pole vacuum. I'm on my second and I wouldn't be without it! It's great for spot cleaning or doing the whole pool without a hose. You can use it while you are swimming. It looks like a gimmick but I love mine!
Caveats: First--get the extra-fine filter as well. It's too fine for spring cleanup but gets dust and pollen the regular filter bag doesn't. Second--occasionally the battery-pack fails. If it seems to be running low fast and you're still under warranty, act to get it fixed (changing the battery/motor combo isn't hard, if you follow the directions). Otherwise the replacement cost won't be worth it.


Second would be a robotic cleaner. Personally, I've had great luck with Blue Diamond wireless remote model and far less with the Dolphin Dynamic because of reliability problems. It's really a set-it-and-forget-it gadget. Yeah, it cost more, but it also brushes the walls as it climbs them so you don't have to do more than spot vacuum and you don't have to brush the walls. In fact, one robotic cycle on all the brands is like one full water cycle by the filter and pump.