Hi @Tanalbi - The final patch for SimCity 2013 was in December 2014. The dev team responsible for the game was dissolved shortly afterward, so there have been no real changes in the gameplay since then.
I know a lot of people routinely said not to bother, and there were a ton of issues with the online-only aspect of the game when it first released. I played it (or rather, attempted to play it) online when it first released and it was a nightmare - there weren't enough servers, they were always maxed out and slow to respond, and some things just plain didn't work. With the final patch, they enabled offline play and that really opened up the game for me. They were unfortunately never able to get some of the planned interactions between cities to work correctly, so even though the game will lead you to believe that you can build, say, an education-only city and an industrial-only city, the sims do not share between cities. There were huge complaints from SimCity 4 players, mainly about small city sizes. Each city is a part of a bigger region and can't be expanded, so you have different challenges based on the city terrain and resources.
Now, with all the bad out of the way, I will say as long as you understand the limitations and enjoy the city-building, I absolutely love the game and have enjoyed playing it for many hours. I have had no issues with installing on Windows 10. Most issues can be solved by the usual - run as administrator, especially during installation; may have to tweak settings if you have a UHD monitor since the settings really don't work with anything above 1080p; make sure you have exceptions set on antivirus. If you have a Mac running Catalina, it won't run or install at all; that's due to Apple removing support for 32-bit programs.
To me, a lot of the complaints from people are not "bugs" but part of playing the game. Resource sharing like garbage, water, power, & sewage works well and as designed. Some of the services - like police, fire & ambulance - work well starting out, but as cities get larger and traffic gets more intense, it's best to build each city with its own set. Traffic is the name of the game; you can't design a grid with multiple 4-way stops and expect to grow your cities without issue. There are tons of interactions - wealth class, educational status, density of buildings, etc - that need to be managed.
I mainly play offline, but EA still has multiple servers available for the online gameplay as well. You can see the list by clicking on the Server Status box HERE. The biggest issue with online gameplay is with people starting a city or region and then abandoning it. There is an ongoing issue with trying to claim a city that has been abandoned, so that can cause heartache if you're playing multiplayer game in a region where someone never comes back. If they just don't return, it takes a year to mark it as abandoned. Then many times, regardless of which dlc's you have purchased, trying to claim an abandoned city results in an error message saying you don't own some of the content used to create the city. There's really no fix, so if you start a region and allow strangers in, be prepared for your region to have abandoned cities.
I would say if you enjoy the actual city management & are into data crunching, this game is for you. If you prefer building big cities & and are more into the design side of things, perhaps consider Cities Skylines. I've never played it, but have heard good things from people who didn't care for SimCity 2013. In either case, both games go on sale frequently for really good discounts, so maybe watch for a sale & pick up the full SimCity 2013 Complete (includes all the dlc's available). In the meantime, you might want to watch some of Skye Storme's Let's Play series to get a feel for the game. He has one on SimCity 2013 and one about Cities Skylines - both really long series, but you can just pick and choose a couple of each to see some tips and how the games work.
This was a really long answer. Sorry about that! Bottom line, I really enjoy SimCity 2013 and think it's a great game. If you've been looking forward to playing it for years, I say - go for it!
