Forbidden Passion (0.5.1 premium) is not a bad game, but does have its shortcomings. The story, for one, has a lot of questionable twists and turns that make it hard to believe, breaking inmersion. It just seems to go from one place to another without a clear path or logic, and the characters change the way they act without any clear reason. And the "sickness" plot makes no sense at all.
Renders have a decent quality that is appreciated, but it lacks real animations, just switching back and forth between two images. Sound has a very small place in the game.
So, all in all, not a great game, not a horrible game either. Don't think it'll ever make it into the greatest games list, but it can develop into something interesting. So far, 5/10