These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Porting Disaster: Comparing the Sega Genesis and Super Nintendo versions of the games, both feature a new sound track. While the SNES version has better audio quality, it lacks in performance (the game will slow down a lot of times), and, believe it or not, load times!
Some may consider the Three DO version to be this. Despite some nice visuals and a good sound track, and teasing the fans with a sequel, the common complaints included the updated backgrounds and soundtrack not fitting with the atmosphere and what is going on in the game. Also, the sequel was never released on the 3DO.
They Changed It, Now It Sucks: Some people complain that by making the background more detailed in Anniversary/Collector's edition it ruins the minimalistic art style that makes the game so atmospheric. But that is nothing compared to the 3DO version which has a very generic sci-fi art.