I have a dutch, she's unspayed and like 7 months old. She's REALLY smart and really wild. haha. I think all rabbits are different and just depends on the rabbit, just like people; we can't all be rounded into one.
Anyway, my dutch is really smart. She learned how to work a toy in a few minutes. She learned how to trick my son into opening her enclosure. She learned how to open her pellet bucket's lid. She's pretty sneaky too.
She also chews on anything and everything, where as my first rabbit a mini lop, never chewed anything. BUT I can't say that all dutch rabbits chew on things because I've only ever had this one!
She's also really sweet and really funny to watch. She loves to be petted and loves nose rubs. My dutch is only 2 lbs and smaller than most, but she can jump just about anything. Mine is pretty brave, she gets a little skittish, but then comes out of the hole with her brave pants on and faces the cat or dog in the face! haha. She has such a great little personality, and SO much personality trapped in that little body of hers.
I really love my dutch and I'm sure your friend will love that dutch if they get it. Especially if he's already neutered and his hormones are gone. I bet he would be a really good rabbit!