I went there a few days ago. It's an easy place to reach with the metro. Off at Union Station, cross the street to Olvera street and walk the few yards to the museum. There is a 3 dollar suggested donation. The museum is rather small but does have a nice collection of artifacts from Chinatown. I enjoyed the Chinese restaurant menus, and the exhibit that showed the expanding Chinese population here. I would have liked more interactive exhibits, something along the lines of the children area of the Autry Museum which has a dress up station, walk-through house and restaurant. As a field trip stop, it would have to be just that, one stop of many for it to fill the day.