I have a vintage Courcheval Kelly, which is epsom's predecessor and the corners look great. I personally feel the corners on ANY leather can get damaged if you don't take care of the bag.
I really disslike how people bad talk epsom on this forum. It gets a little insulting to her people talk about how "plasticy" epsom is all the time and I've been guilty of buying into the stigma myself.
thanks--helpful to hear your comments