Recs.
Updated
"As a simulator, SimCity advances the achievements of SimCity 4, SimCity 3000, and SimCity 2000, but as a product, it is inferior to all of them. Constant connectivity does have benefits, such as leaderboards, worldwide challenges, and the Global Market, but it's not even close to being worth the hassle for those features, and hardly touches the essence of what makes SimCity so diabolically addictive and engrossing" according to PC Gamer 2013 review.
Specs
Pros
Cons
Con City to city resource sharing is limited
City to city resource sharing can only take place if both cities are able to provide said resource with one borrowing some from the other. There is no way to share resources with a city that for instance does not have a power plant and power is what the player wants to share.
Con Always on DRM
Simcity features always online DRM, even for it's single player campaigns.
Read Gamesindustry.biz article.