I can see how this place is rated good, but I am not sure about #1.
We rolled in around 8:30pm and were able to get in without reservations. We had actually intended to go to another Italian place down the street which did not have any room.
I had gnocci and my wife had a duck dish. We also ordered a side of broccoli for my 2 year old daughter and it was way past her bedtime. The broccoli was sauteed heavily, into a mush. We had requested steamed but the server said they didn't have steaming capabilities? I don't know this seems like something every restaurant should be able to improvise, especially a high end one. That sort of turned me off.
Moving on, the wine list is absolutely incredible. It took us a long time to decide on a wine, and upon speaking with the server he recommended a bottle which we ended up thoroughly enjoying.
My gnocci was standard in a butter pesto sauce. In fact it was quite good, to the point that I went home and found a recipe to try and make my own. My wife's duck was good but not great, it was a bit unimaginative and didn't look very nice on the plate.
It could have been that it was getting late for my little one and she was not at her best, or the dissapointment of not getting into the place we really wanted, but I was actually very surprised to come onto trip advisor and see this rated as the #1 place in Waltham.
I don't eat out a lot of Italian, the last place I tried was a Maggiano's in Philly....but I would have actually rated the food there better than this.
All in all, the best recommendation I can give is GET A BABYSITTER, but I also wouldn't recommend driving 45 minutes out of Boston to get this meal either even in the best of situations.