Wtf, Rockstar game with no freeroam?
The freeroam is like the one in Mafia II but worse. You can drive around the city, but you're on a mission 24/7 and there is nothing to do except drive to the destination. You can't even pull out your gun whenever you want.
The cases were great, but the freeroam was shit, so when all the cases were completed the game ultimately
became shit.
It's worth playing, but not worth buying as one playtrough is enough for the next few years. I advice borrowing it from a friend or renting it.