This game is very good and fun, but sadly some elements get repetitive!
The storyline is great, and it keeps you asking questions until the end which make you want to play it even more.
The combat is very good as well, however once you are given the ability to counter your enemies attacks there is a snag. You can use this ability to wipe out a whole army. This kind of defeats the purpose of being sneaky and only fighting when you absolutely have to.
Another thing that is disappointing is that the investigations that you can perform are fun until about your third mission. Then they are repetitive and boring which makes you say "haven't I done this about a million times already?" Luckily this mostly just pulls some people away from wanting to replay the whole game a second time.
Overall this is an amazing game that you must play despite the problems it carries with it.