You can easily spend more than 100 hours building the dream city. And not only that, you need to manage the transportations of your civilians. Basically, handful of expansion packs and tons of mods, made this game one of the Must Buy of a lifetime for now. Cities Skyline 2 hasn't yet pass the predecessor.
There are several player styles:
1. Focus on transportations, traffic, and overall road conditions
2. Aesthetic of the city. Types of trees, buildings, and the looks of the city. Forget about the traffic.
3. Realist. Trying to recreate a real city plan into the game.
4. A little bit of all :)) and this is me.