During the sales, avoiding it for the crowd you fi...

During the sales, avoiding it for the crowd you find is a trap with small escalators controlled by security workers who seem more insecure workers.
Unacceptable prices, if not for Russians, Arabs (few), Chinese (many).

Attractiveness, such as the Duomo, the Swarovski tree, the obei obei, many enter the panoramic tour and leave. I would cancel it from things to do on a day in the center.
Not essential.