My family has been going to Grimaldi's for quite a few years and we have always had a good dining experience. We know that they stoke the ovens between 4-5 and know there can be quite a wait. We don't mind waiting the time to get good quality pizza.
The reason I am only giving it three stars after this visit is because of the staff. Especially the host Francisco. He is rude! He speaks in a condescending tone. Especially if you have parties larger then 4. He acts annoyed. During my 45 minute wait for a table I watched people that wanted tables that had larger parties be spoken in a tone and manner that was not respectful. Love your pizza but please come up with a better system for parties over 4 and by all means please coach your lead host on how to deal with people.