Assassin's Creed's repetitiveness detracts from its otherwise ground-breaking, innovative gameplay.
Assassin's Creed has a very unique storyline that is full of twists and turns till the very end. The graphics are top-notch, with each texture rendered in high-resolution and excellent player models. Animations are extremely fluid and gives a sense of realism. Also, the environments are excellent, and there is a nice contrast to everything, making the main character pop out from the background. It's graphically a very good game, and Ubisoft did an extremely good job. Especially the fact that everything can be climbed and your player actually can grab onto little inlets and dents that you may have thought were just there for show.
Gameplay is also equally well done. I like the one button gameplay and free-running could never be any easier. You would think that with excellent graphics and gameplay, this game would be at least a 9.0. What detracts from this game is the repetitiveness of the missions. Each mission involves you having to climb vantage points and then complete the same thing for "research" (eavesdropping, pick-pocketing, etc.) and then finally assassinate the target. This is fun at first. However, there is no variety or unique parts of the research or climbing vantage points for each mission. Instead, EVERYTHING is the same! After about 4 or 5 assassinations, it gets tiring, boring, and you don't even care about the storyline at all. It's all so very repetitive.
Assassin's Creed had a lot of potential, but if they improve on variety of missions and maybe more cities, the sequel will be a classic.