They resist cultivation, and so quality varies widely from tree to tree. I've got a decent tree in the front yard, and they're nice as an "also" in any kind of berry thing. Not so exciting by themselves, but a team player.
Somewhere I read about stuffed mulberry leaves and them being quite good for you. Someday. I have a stash of mulberry chunks and if I may say so, works killer on smoking anything beef.
Like 3 years ago, we left our name and number with the lady that owns a "farmstand" here in town where they grow oranges and all sorts of things (pumpkin patch too!). We go there to get stuff for juicing quite often.
Anyway, I got call TODAY from her to let me know they had Mulberries.
WTF?
I mean, yeah... it's super cool that she called, and we will definitely go get some, but who keeps a note around for that long?!?!