Comments on some of the above:
Restrooms for K-M: there’s a building next to the outdoor rings to the north of M that has showers and restrooms. Is it as fancy as the main building? No, but it’s always clean. Plus WEC has the cleanest porta potties in the western world!
Barn A has permanent stalls, I think you mean barn T or U as the lunging ring.
Given the fast turnaround between shows, I don’t think it’s realistic to expect that they will clean under the mats of every single stall of the facility. When we went in for a show we always pulled up the mats and cleaned under if needed. Maybe that’s why they are installing pour in mats - wrangling the mats is a pain and stinky too.
The Paddock Club is OK but never our first choice for dining unless we are on a super tight schedule. Plenty of decent places in town, cheaper too!
If you had shown at some of the fairgrounds and backyardigan showgrounds I’ve shown at in my horsey life, you would defend WEC too. Really hard to be nitpicky about conditions there when the “normal” horse show experience around here (SW Ohio) is pretty primitive. YMMV but I always love showing at WEC.
ETA: And I know it doesn’t really matter for this discussion, but if you had seen WEC Ohio when it was Roberts Arena - way back in the day - you would not believe they were the same place. It was quite the dump when they started the big upgrade. Just a little old fart color commentary for the heck of it. 