I watch several live auctions, I "try" to win several items in said live auctions but most of the time someone with some super internet speed or something beats me to the better books. For the most part, lots of the hotter books are selling for way over GPA or perceived market price. Even filler FF silver age gets snapped up quickly.
The platform is pretty good. I have sold several books on there this year, and none I listed for sale. I posts pictures of some favorites here and there and usually get a few people asking if I will sell them. I sold a Camp Okajima I didn't really plan on selling because of such a strong offer.
My IG id is @phillipkj4 if we are doing a registry.