I have mixed emotions about BAT having bought and sold there.
Likes for buyers: The easy availability of quality classic, vintage, exotic and unusual cars and motorcycles, all in front of you without even having to put on pants.
Likes for sellers: Immediate access to a global marketplace with potential buyers, many without financial limitations. And reliable, timely sale completion.
Dislikes for buyers: As a greater percentage of quality vehicles are listed via BAT where you must compete with aforementioned buyers with no financial limitations, fewer such vehicles are available via traditional means.
Dislikes for sellers: None that I can think of.
Case-in-point…an auction I had hoped to bid on thinking it might be worth low $20k’s…
https://bringatrailer.com/listing/1976-bmw-r90s-29/