I have a friend who's building a pool and is considering the in-pool floor jet system for doing pool cleaning ( it's called A&A In-floor QuikClean/MagnaSweep). Apparently creates some kind of "vortex" that collects debris into a central location on the pool floor where it can be sucked into a filter. Anyone using this kind of system? Any pros/cons to be aware of? Appreciate any insight you have!