Being an owner of the game in Steam, you will not regret playing.
There is always a delay after I press jump. I really tried to continue playing the same level over and over again, but e.g. a slight delay before the latter ruins the level. The background color is almost the same as enemy color. Seriously? Didn't anyone QC the game before release? And in the soundtrack, there are no certain rythm points to give feedback the user. The animation is also just not synch'd with the ryhtm. I think I'll give this series another chance - getting the first game. Maybe only fun in the first 30 minutes, not more.
At first the game seemed different and interesting. However, the ending... I did not like it. Also as others stated, it is not possible to read all the possible choices if you are not a native speaker nor a fast reader. The character also walks so slow. The graphics are nice, but loading screen every 10 minutes...
Maybe it is not perfect in terms of graphics, but I still remember the story. I also remember gaining bronze, silver and gold medals and feeling in dilemma during choosing the ability to unlock. I also liked the different style of combat for strong enemies, fast enemies and group enemies.
I liked Witcher 2, very much, but it has less intensive story compared to the first game. It has been two years I completed the first, but still remember the twist. However, I really do not remember much from the second. The graphics are better, obviously, but the combat made me crazy. The skill tree is also not so detailed this time.