Excellent Game But A Little Tedious to get Through The Main Story
Here's the synopsis of the overall story. You start out as a normal person in a "research" laboratory when this group of researchers teach and tell you about this machine called the Amibus which maps your genetic history so you can replay what your genes have been through. Throughout the game you go in and out of the Amibus to take 'breaks' but these are just for further plot development for the present time. The ending is fun but it leaves you on a major cliffhanger (kind of like Halo 2 did).
The maps are fairly big; if I had to compare it to San Andreas then I would say it's relatively the same size. You have three big cities and a nice size map to travel between them. You can walk in the travel map; however, I would ride a horse or transport to the desired city (once you go to all three cities).
Besides the main missions there isn't really anything else to do except explore but there are some other things you can do which are: search for different types of flags (there are many different flag denominations) in the various cities and the intermittent "travel" map. You can also search for Templars to fight or ride around and see if you find any easter eggs (I haven't yet, although I really haven't taken the time to look for them). In the cities and in the travel map you scale almost any object which gets really fun!
The controls are pretty intuitive and easy to follow. You have High Profile actions and Low Profile actions. You can switch between them by just holding down R1. The simple controls are: square-left hand, circle-right, x-jump and triangle-head.
I've beaten the game and I've come to realize that more often then not it's tedious because you have to go to several view points in order to get your missions started. Besides that, it's well worth it because the ending is good except for the cliffhanger
I hope my review told you want you wanted and future ones will be more forthcoming in detail