Most everyone who has YP in their pond has reported only upsides and no downsides. Never heard of anyone who didn't like eating them. If you get pellet trained YP you will find they grow very well and are active feeders in lower light times of day. They have many advantages over other panfish (including easy to control their numbers)
Tilapia if legal are also a great forage fish option with little downside or interference with your other goals for your stocked fish.
