I guess a walkthrough is the major need for now. For psople who don't know much about macroeconomics (like me), its just moving a bunch of sliders till the population starts to grow blazingly fast. So a walkthrough would truly help for users starting out.
As the population starts increasing, the houses occupy all the places and in order to fix that I had to keep spamming clicking on lvl1 houses and delete all lvl1 type house from a button. That kind of starts to get annoying at some point maybe fix that, if it was not intended.
And yes, the feature that you mentioned, managing hamsters at a micro level sounds great! It allows users to dive deep into the city they built and learn the role played by companies in the economy of a city. This may even turn out to make the game a bit more complex but it surely adds a new dimension to the game.