This restroom is in a poor condition - the pipes especially under the urinal needs repairing or better still replacing and the toilet seat needs replacing. The toilet tank issue with the non shutting off fill valve was easily sorted but the flapper may need some attention if it is leaking! I suppose it is the kind of thing that you may expect with KFC's as the UK ones have a similar issue with maintenance in some branches (makes you wonder if the kitchens are in good shape) - hence why I prefer Burger King's and McD's over KFC as they are normally in better condition, even the un-refurbished older branches that still exist in some areas!
I've never really come across KFCs with this problem. It seems like this one either just has bad management or all this stuff happened at once and they didn't get around to fixing it yet.
The piping is absolutely abysmal and pitiful likely needs to be replaced or repaired asap, the toilet seat also needs replaced or repaired. This restroom could use a remodel and the fixtures here are okay and tolerable
There's no point doing a remodel since the only real issues are the seat, flapper, and the slow pipes. If those are fixed, it would be functional again.