Oh yeah, there are a lot of fun aspects to managing Skylines and it was that realization that made me quit obsessing over the demand meter. LOL However, I've also found managing traffic to be one of the most important aspects of this game.
I'm not sure what you mean by commercial offices because the buildings that grow in my commercial zoning aren't offices. For the commercial sector, it can be a pain in the rear when you want to zone an area of light commercial but your Cims have become educated because the early light commercial wants uneducated Cims so it can take a little while for those jobs to start filling. Once they do, though, the buildings will level up fairly quickly to Level 2. Level 3, however, is a bit trickier. Of course sometimes I have to remind myself exactly what one of the mods I use does because it affects how commercial and industrial level up and in some cases makes it easier, in others makes it harder. That particular mod allows industry to evolve based on the education level of the workers who start there and having a cargo depot nearby, which is all industrial should need anyway.
I had a horrible lack of employees yesterday when I started playing, about 17% of my citizens were seniors. One of the things I had thought I did was enable a high-rise ban in the Old Town District but still had high rises. As it turned out I apparently forgot to enable that ban and when I did that took care of my lack of employees. Once they rebuilt things were turning back around and before long I ended up with a huge pool of people to put to work. I finally got that solved by adding a bunch of offices to the Sterling District and getting them all leveled up so now unemployment levels are great. However, it also had the unintended consequence of giving my city way too much school capacity since I had to place more services in the Sterling District to get everything leveled up all the way. Now I'm getting a horribly highly educated workforce. I checked a few buildings and about half the employees had maxxed education levels. I think I'll turn the University off for a while. If I keep elementary and high school occupancy below what's needed the university is a nice thing to have fairly early on, but otherwise not so much.
One of my next missions is to build a new area of farm land. The original is kind of crammed into a smallish space and I want to be able to spread them out a little more and use some of the farm park-type things to create a buffer zone between the actual industry buildings and the "work camps" I'll be building. This is one of those times I long for things like the Mega Lots that were made for SC4. It should be a fun transition as I"m going to try to get a bunch of uneducated workforce into those farms and at the same time get the current farm workers into jobs they're qualified for.
Oh, I also am really wishing we had rail to underground in this game. I'm crossing my fingers this will be something included with the tunnels DLC.