4/5
As regards the Definitive Edition, I thought the more modern graphics were nice, and I had no problem playing the game on my PC. There were some bugs, but nothing too major, except for a specific mission in a park in Los Santos that felt impossible to beat because the enemies were shooting non-stop from afar just after CJ spawns from a cutscene. Those shots were enough to kill me in a couple of seconds and I struggled to beat the mission because of this. I don’t remember having any problem with that mission in the original San Andreas. Other than that, the atmosphere is not so good in this edition, because the lighting is different, and some weather elements like clouds and fog no longer exist.
As for the game, when compared with GTA3, and Vice City, it has too much filler content. It does do a few things better, though: it has better shooting mechanics, allows you to fly lots of planes (including a fighter jet), the main character can now swim, and the map is huge in comparison to the previous titles. These things, however, are not enough to make this a better game. Both GTA3 and Vice City feel much more compact and go straight to the point. One thing I disliked about San Andreas was the gang wars. They felt like a poorly designed gimmick, implemented just to fill the game with more content. The action was always the same: equip the M4 and shoot from a distance the hordes of gangsters coming at you from afar. The story of the game is uninteresting, with missions that feel like side quests most of the time. Moreover, CJ lacks the charisma of the previous main characters (even compared to Claude, who without muttering a single word, still had a badass aura).