This is one of those places Google should allow you to give 6 stars.
The restaurant is located inside the hotel.
Excellent atmosphere; it's a Grosso Napoletano, but with a different feel.
Pizzas are much tastier than those on the peninsula.
It's a shame it's not as popular as the other places, but maybe that's also what makes it different.
10/10 food. If you have celiac disease, you'll already know them, and if you don't, you won't find any differences from the usual dough.
Also worth mentioning is the 10/10 service from the waiters, who were always attentive to make sure everything was okay.