I played beta few times and after that I installed sc4 back. After that I found this site.
No, new SimCity isn't bad game. I like the new zone system, the way zones evolve density and wealth, like in real life.
But the problem is that the game is too easy, like societies was. And city sizes are really small, so it felt like "Hey, try to get all the achievements and build many small fun different cities" -game for casual players. For those who actually want city simulator, I suggest you stick with sc4. I would recommend new sc for those who like easy city building games like sc societies.