Pros: Less time spent on maintenance. Inexpensive compared to other pool vacs. Fun to watch.
Cons: None that I've experienced.
This is a great little vacuum. It hooks up to your filter intake or skimmer, and vacuums straight to your filter - not a bag with holes that doesn't catch fine particles. We use ours in a 24' above ground pool made by Intex. Yes, one of those temporary pools. It would work in any above ground pool! The most important thing to have is a good filter system. The filter supplied by Intex is not very good. This vac works best with a sand filter. We have a Hayward Pro Series system with a 1.5 hp Power Flo Maxtrix pump. The combination of this filter system and vacuum has saved my summers. I spent the first year with this pool spraying out the filter and hand/pole vacuuming only to see the finer particles come back into the pool through the return. It took all the pleasure out of having a pool! Now, I hook up my vac (3 min), turn on the filter system (1 sec), and walk away - it's awesome!!! This little vacuum even handled our pool opening this year, which included a large number of leaves and a ton of very fine particles. Unlike the super expensive Pool Rover, this vacuum does not move systematically around the pool to clean in a specific period of time. It moves in ever-widening circles, then goes straight for a bit and starts circling again. It can be a little vexing to see it turn just before it gets to something that you want it to vacuum up, but if you give it time, it will get everything. We put ours in and let in run for about an hour, when we come back the pool looks great! Aqua Bug, Wanda the Whale, and Diver Dave are all the same vacuum with different housings.