I went yesterday. There were quite a few people there for the start of the sale. As far as sales go it was very poorly organized; several instances of miscommunication, no prices listed anywhere, things just loose in boxes or in piles.... it was a bit of a hot mess. There were people there from other school darkrooms who were filling boxes with stuff to buy in bulk and take to their facilities.
There was only one reseller there that I was aware of and he went straight for the cameras (and he got a lot of them). It seems some people were allowed in early (which I was pretty annoyed about) so some of the things I was looking for were already gone when I arrived, supposedly at the 'start' of the sale.
On the flip side, despite a lot of people crammed in a small space, everybody was pretty civil. I get the sense that a lot of people were just there for the cameras, which I wasn't so that made it a little easier on me. Even though it was a lot of people converging on a small room and a finite amount of stuff I was still able to find some things I needed. I ran into a friend there who runs a community darkroom in my area so, when I had found what I needed, I helped her dig for things she needed for a while.
I was able to find a Gra-lab wall timer in decent shape, 50mm & 80mm Schneider Componon enlarger lenses, a Saunders easel, a couple of developing tanks to replace a couple I have that are in rough shape, two Kindermann 120 reels, a tray-mount siphon for washing prints and some chemistry. The prices on the timer, lenses and easel were about the going rate; Not bad, but nothing special. The prices on everything else were very cheap. At the rate it was going I'll be surprised if there was anything useful left at the end of the day.
All in all, it had its frustrations but it was worth going. I definitely found things I needed. Thank you, fiddle, for starting this thread and making me aware of the sale.