Very informative and entertaining. If you're near Mentor, it's well worth your time to check it out. I took off 1 star because of the bias the exhibits exuded (but just to be fair, I have that criticism about most U.S. Nat Historic Sites). Apparently if Garfield survived, he was such a genius all of our problems would have been solved.
Anyway, I don't mean to sound so down on the place. It really is incredibly enjoyable site about a chapter of our history that largely ignored.