GTA 5 is a game that is not for the faint of heart. There are missions (tasks, jobs) that are a bit disturbing and/or bothersome to some people.
I had a hard time with doing some of the missions (tasks, jobs). But at the end of each there was a bit of humanity still there.
The storyline was great. The implementation of being able to swap between 3 characters makes game play a bit more engaging. The option to choose how to do missions (tasks, jobs) makes for various outcomes and most likely various different endings. I have only seen one so far.
As for the storyline. I give it a 4.75 out of 5. Mission (task, jobs). 3.75 out of 5. Some were complicated and some were easy. A bit to easy. GTA 4 missions (tasks, jobs) are a bit more complex.
In the end I guess I give this game a 4 star rating out of 5.