One of my absolute favorites in the city! Never had a bad experience. Sometimes the wait staff can be a little awkward or rub you the wrong way but I think that's part of the whole experience.
The 4maggi is a life changing experience, pizza without honey just isn't the same for me anymore. They also have the best margherita I've ever had, simple clean and tomato-y. I really haven't explored the menu much else, with the exception of those yummy olives and almonds, you really don't need to with pizza this good though!
If you're going, order wine. That's the point. Don't be foolish like me my first few times and waste your money getting one of their cocktails (that IMO are not that good) they charge upwards of 12$ for single!
I've never had much issue with a wait, it would be worth it even if I ever did though.
My only real gripe with UNA is that they took their grilled cheese and tomato soup off the menu.. I remember sitting at the bar watching it get made several times and then more or less inhaling it.. that was my favorite and most comforting dish I have ever eaten.. anywhere. Period.
UNA please bring back grilled cheese, if not.. you're still my favourite.