I hooked up the 75h today. The picture is much more cleaner, much more crisp than my last dvd player (the cheap JSI JS4127). The audio is also much cleaner and crisp.
However, it looks kind of grainy in areas that are black, i.e. a black suit, black car, and so on. It may be due to the settings on my display, which I should probably reset. I set it back and forth between 720p and 1080i and couldn't really tell a difference between the two. I set sharpness at 1 and to cinema 1. I only watched Matrix Revolutions and Batman Begins.
I'll test it out much more later on and tomorrow.