Some friends and I went by Commonwealth on Wednesday at about 8:45 pm, and it was packed! There was a 45 minute wait, and there were tons of people at the bar too. Good sign for that place, as well as the other new places coming, like Zinnia (Mediterranean Caribbean) and Sake Club (Sushi/Japanese).
I also emailed owner Jamie Leeds about being closed Mondays, here's her response:
"We plan on opening on Mondays in the future, but for a new restaurant opening it serves the staff best to have a day off."