I assure you, I have never serious'd moar in my entire life. I own no shortage of PS1 classics, and it has been horrifying to realize that many of my favorite PS1 games have looked and played like absolute garbage this whole time.
Final Fantasy IX looks and plays good on emulator, 2D games still look good. Other than that though, most 3D games look aweful.
Compared to recent 3D games, or even PC games at the time. So many games used bad geometry that was blurred away by the crap resolution. and the clipping shows everywhere whether you put it in higher res or not :P.