I loved the Winter Sonata drama so much that I decided to watch the anime as well. At first, the anime was a carbon copy of the drama, but then it branched off and did it's own thing. The anime showed scenes that were mentioned or alluded to in the drama and even showed and showcased it's own new story lines. For the most part the anime kept the core story of the drama in tact and made some changes that were for the better. I also think that the ending was more fulling and gave more closure to the story. My only major gripe about the anime was that I wished that it incorporated more of the original ost from the drama and not just the main theme song.
Score: 9.0