I absolutely love this show as it is one of the most tremendous shows on the television. It has the best plot ever and its adaptation is too good. It is complex, mutli- layered, surreal, vibrant, imaginative and it draws your eye over surprising levels of detail and performance.
It is worth just watching for the scenery alone. I agree to the point that the acting is a bit cold and even wooden at times, but it is perfect in keeping medieval times and feel of the show. It is dark and gloomy but I think it is the only show that keeps its real roots to the book.
The script is intelligent and it is well delivered by Sean Bean who plays Lord Edard. He is supported by other well known actors. Game of Thrones perfectly strikes balance between medieval look and fantasy story telling. I recommend to watch it and not miss it.