I thought the information provided was very good, and it was an excellent way to see Da Vinci's Last Supper and the inside of La Scala. We went back to La Scala later, and the free entry back in was great. My main complaint was that there was not a lot of time for certain things like looking around Santa Maria delle Grazie or the mosaics in Vittorio Emanuele gallery. Our guide was very informative, but was not particularly interactive or inviting. Overall though, I think it was a good opportunity to see some of the major sites in Milan.