I can't say as compared to a Chin, as I've never had one.
But from what I've experienced of these little critters...they are much more skittish and shy than say, rats, mice, or guinea pigs. They are rock-hoppers, so they enjoy jumping around in their cage...rather than climbing like rats...or staying on the ground like g.pigs. They chirp and make very cute noises as they communicate with each other and me (but not loud like g.pigs). They are tame enough now to come out and take peanuts or treats from me...but won't get in my hand. When I've got them out, they just want to run and play, but don't want to hang out on or with me.
They are greatly amusing though...and I enjoy them.
"I don't have any idea if my dogs respect me or not, but they're greedy and I have their stuff." -- Patty Ruzzo
"Dogs don't want to control people. They want to control their own lives." --John Bradshaw