I will be short: 4h waiting in line, get inside and pushed pushed arrashed, come on, fast fast people everywhere, not enough signs, some of the boards with explanation in english were unreadable, people complaining because the audioguide was not working... really? 4h waiting for this? just hope that the sistine chapel is worth the effort but... much smaller than what I had in mind, and with stuff telling you NO! move move, to the middle, you are on the way, move, push push, people! so stressful! I can't understand the beauty of this. I would not recomend it even if it was for free.