Ballistics Report

Pros

Stop me if you've heard this one before
Plot set during the Crusades pretty much ensures that you've never played a game quite like this one.

City life
Cities are vast recreations of the real thing drawn with so many details that you can practically smell the peasants.

Cops and Robbers
Chase sequences where you leap across rooftops and hide from city guards and Templar goons are almost worth the price of admission on their own.

Cons

Burial plot
A ridiculous plot framing device about futuristic searching for genetic memories all but ruins your suspension of disbelief.

Second verse, same as the first
Mission objectives are so straightforward and repetitive that you've seen all that the game offers after just a handful of assassinations.