Gorgeous chapel steeped in history and a very informative guide. Spent much longer than expected taking in the lovely frescos, paintings, and architectural accents. Finding the correct entrance was a little difficult, and a portion of the church grounds is closed - they were issuing tickets at a 5 euro discount, but would not refund our pre-paid ones, please be aware when planning!

The church itself is fascinating. I would skip the audio guide unless you are especially interested in Dominican history as each stop along the way includes a 5 minute presentation. Also we had trouble with the functionality of the iPads and they had to replace each of them more than once.

It is far, far easier to just pay for a ticket at the entrance, instead of finding the place to trade the voucher for a ticket. It was confusing. I gave up trying to find the place, and just purchased another ticket at the entrance. It is a nominal amount, the cathedral is mostly empty, there are no lines at all. One less star for that. However: The museum is quite significant for both its architecture and art (Masaccio fresco!) and well worth the visit. Don't forget to ask about the camera obscura meridians, and to take a walk around in the courtyard/ loggia - there is more to see outside the cathedral. 5 stars for the cathedral itself. Minus one star for the confusing voucher exchange. The experience itself was well worth the modest amount of money I paid at the entrance. A guide might be helpful for some people, to hit the highlights.