I love a bar that takes reservations! This is a huge space but is also very popular, so I love being able to secure a table without battling other patrons. The cocktails are creative and very well-crafted (though not cheap - but what is in MA ?). You will definitely need to show ID at the door, then head downstairs to the hostess stand. They do allow people to walk in (space permitting) - some weekends there is a huge line of people hoping to be admitted without a reservation.