From the review:
"Assassin’s Creed II was hands down one of the best games of 2009. Heck, even one of the best game of all time! So to be the successor of such acclaim really puts the pressure on. Announced back at E3, there was alot of hype and excitement about this game and, despite being part of the Assassin’s Creed series (or because of it), there was doubt that it could live up to the name. Rather than moving the series to a different era, Ubisoft decided to keep Brotherhood in the same timer period as Assassin’s Creed II - like the recent release of Fallout: New Vegas shows, it’s a hard job trying to make a game similar to its predecessor without making it just the same game but with new missions."