Recommended, well worth an hour or more. The steps are quite steep if you want to descend the ampitheater steps from the upper street, the museum entrance is at the lower level. Once ticketed, you can take the lift to the starting point on level 4. The museum is entire museum is laid out as a gentle winding ramp, entirely handicapped accessible. There are several interactive displays for the younger visitors that show the extent of the Roman Empire, customs and artwork. You can learn the proper way to don a toga and lay out mosaic tiles for the entrance to your villa!

Take the time to watch the short videos, one in particular visualizes the amphitheater when it was intact.

When you get ready to depart, take the lift to the fifth floor, this will allow you to exit at street level back to the funicular and the basilica.