San Andreas is one of the greatest games ever.
The voiceovers are done amazingly, the gameplay is really fun and the story keeps you by your screen with CJ.
The thing that puts out San Andreas out of other games from that time is a huge map and a whole lot of things you can do out of the storyline.
You can go dancing, you can go racing, buying new things, stunting with a motorbike, using mods and you can use some very fun cheats.
All missions are great, I especially liked Madd Dogg's Mansion and the last mission. Some missions were getting on my nerves like Cesar Vialpando and the one with Zero when you're taking down little airplanes. But the bottom line about the missions is you have 100 non repetitive and fun missions and that really keeps you by your screen for hours and hours.
San Andreas has also got one of the greatest in-game soundtracks with a voiceover done by Axl Rose for K-Dst.
I can't find a bad thing about San Andreas, soundtrack, gameplay, missions, story, map, graphical design, driving, freedom, those are all positive sides of San Andreas.
I've grown with San Andreas and I don't think I will change my opinion about it being the greatest game ever.