For a history buff like myself, this was an interesting visit to gain some insight into President Wilson's last years. The house itself is nicely preserved and has lots of historical artifacts from Wilson's presidency and the guides do an excellent job of presenting it all. Others have mentioned that this is like an early '20s time capsule, and it really is. The house is also in a neighborhood of various consulates and embassies (Embassy Row), so if you walk from the Dupont Circle Metro station, it's kind of cool to saunter past the different foreign office buildings and residences.
After visiting the Mall and Arlington, this was a welcome, low-key break from touring some of the other more crowded attractions. Well worth it, for me, anyway.