I only use the crate because I've had Rhett go over the top of the ex-pen. This is the one I have
Precision Pet - Detail . It only has a door on the end, so it kind of limits placement, but it does come with the divider which is handy when going from puppy to bigger dog.
I should add that the dogs are never in there for more than an hour or two. If I had to crate for longer, I would block off the bathroom just so there was more room.