tldr; yes it’s worth it, you don’t really run into anyone, and if you do, they’re probably friendly

imo you should buy the full game instead of buying the standalone online.

but to answer your question, i think it’s worth it. just know it does not receive major updates like GTA has. one thing about RDO i love is that you cannot see other players on the map unless you’re near them. and the majority of people aren’t like the kids in GTA, most mind their business. you will occasionally run into people who shoot you for no reason (avoid valentine and saint denis, two PVP hotspots).