I didn't realize from AG's photos that the container and the mug match (color and design - AmericanDreams' photo shows it well). I think the set looks nice, but yeah, it's plastic, and not super nice if you have it in your hands. Kids probably won't care at all, collectors will. As stated, the cookies don't come out, but they're nicely painted to look at. The sheet music I expect to get promptly lost.
I think they're cute, and a nice set, but not a very good value.