To jfalken, I think you can definitely use the Pool Buster as your primary cleaner. We only used our vacuum once this year - to open. Since then it has been the PB. I got the PB Max CG, specificially because I intended to use it as the primary pool cleaner. It is harder to find and more expensive, but it is supposedly 30% more powerful and it recharges in only 2 hours. We have a 20x40 IG. (The CG also comes with a finer slit bag that works quite well).

That said, I did just buy a Pool Rover Plus as well, mainly because we stay open late into the fall (solar heating is great!!) and the leaf load in the pool can get huge! The PB does pick up leaves, but the mesh bag is about the size of a 16oz cup of coffee, so you can only go so long without cleaning it out.