Very fun! In the future.
SimCity is however a good game, if you play it on a nice and casual level without rushing it to much. You may want to consider playing it with friends, especially at the time being. Seeing as other players may directly harm or ruin your gameplay experience.
If you've played previous SimCity games and consider buying this game, wait. It'll become cheaper eventually and the bugs will hopefully be fixed as well. So lean back, relax and purchase it once it is less or even unbroken.