Just be prepared for long waits at the restuarants at Patriots Place. The wife and I went over there last saturday around 5:30ish, Red Robin had a 1 hour wait for a table for 2 (1 hour 45 minutes for a party of 4) and CBS Scene was 2 1/2 hours! My wife had checked out CBS Scene on-line (you can make reservations) so we already knew we weren't going to be eating there. There is a cool little CBS store underneath the resaurant, got a Sgt. Shiltz tee shirt
So I would expect huge crowds when they open the Hall. And the following saturday night the Revolution have a home game, so expect long lines then too.
We figure we'll go back on a week night since we only live 15 minutes away....