The game's plot was discussed to some length shortly after the game's initial launch, but overall it gets vastly overshadowed in discussion by the gameplay and online mode. Today very little discussion takes place on the plot or any of the game's characters outside of the main protagonists - was it simply not as impactful as the rest of the game?
I'm aware that the general opinion of many online communities is that the campaign's plot was especially weak, especially when compared to GTA:SA GTA:VC or even GTA IV and its episodes occasionally. Were the characters not well written? Was the plot poorly structured, just a scripted showcase to serve the gameplay?
Do you have a different opinion? In which case, what did the plot do right for you? What parts of the campaign stood out well, in relation to the plot specifically?
It's a topic that's been beaten to death repeatedly, but with 1.5+ years worth of retrospect how good was the plot?