Hi.
First off, the pool frog is a waste of money. Most of the other equip seems reasonable.

HOWEVER--anyone who tells you all you gotta do to clean a cartridge filter is just hose it off is....LYING! They are much trickier to clean but those of us who have them and have mastered them love them. The rest of us use either DE filters, or, more commonly, sand filters, many of whom switched from carts. I'm a sand filter guy and have been for 12 seasons. Before that, I had a small cart.