First thing's first, GTA 5 is a fantastic game. The missions are great fun and there is so much to do it hurts your head just thinking about it. From golf, to diving, exploring wide open areas, hunting animals to watching movies. I really like the character change system where you play as 2 or more characters during a mission.
However, there is major flaw, the driving mechanics. Cars handle like a bad need for speed game. Gone is the heavy feeling, hand braking and sliding round corners feel of GTA 4. What you get instead are jerky, badly responsive cars that seem to hover around. No realistic acceleration or deceleration. When you ram other vehicles you either bounce off or stick - and frequently do get stuck between vehicles in a pile up. You can't force your way out, even if in a lorry. It's ridiculous. As driving is the main part of this game, it basically ruins it. I've been playing 3 days solid now and am bored. Rampaging and exploring are what i like best about GTA games, but because the driving mechanics are so awful, it's just no fun. Also the damage is just stupid. A head on crash at full speed hardly dents the cars.
So over all, a great game but i won't be playing this in 4 weeks time, let alone 4 years time like GTA4. Very disappointed - how could Rockstar have messed up the most important aspect of the game? Is this why it was delayed 6 months?