I've played for about 90 minutes, and here's my first impressions:
The game looks beautiful (on PC). The detail in the characters are great.
Hacking is neat, especially the descriptions of people. "Facing demotion", "Watches sitcoms", "Frequent porn site visitor" (yes that last one is real) to name a few.
Yes, the driving is as bad as people have said. It was funny at first crashing into stuff, but for a side quest where you have to deliver cars across town in 90 seconds, it's frustrating. After hitting accelerate, 2 or 3 seconds later you're flying and are prone to crash on turns.