The museum exhibits are usually interesting. If you're lucky to take a docent tour it's quite helpful because the back story and thoughts behind the works of art help explain what you'll see.
The building is small and one can easily spend between an hour or two here.
Parking in the garage behind the building is easy, covered ( in Az sun, a big deal)and free. It is part of a plaza which is also worth the walk around to see outdoor sculptures.
The gift shop contains some unique items.
Thursday from noon - 9 pm is free and Friday nights 6-9.