Wait till you replay the earlier games. I bought the definitive edition trilogy in a sale, only just started playing thru them. Decided to skip GTA III completely after seeing the reviews and lack of unofficial patches. Vice City feels much more playable after adding a bunch of patches, but unfortunately it doesn't fix the clunkyness and difficulty of the missions. I'm only like 7 or 8 missions in and feel like quitting, having to retry several missions multiple times. Especially that RC helicopter mission, I've no idea how I even managed to complete that (took like 6 retries). But I'll somehow try and chug thru it.

Hopefully San Andreas is lot better (and given the number of mods available for it, it feels like it would be).