Looks like the bonuses are sort of like the monopolies system from VI. Every resource will be a little like a product from VI.
I know in VI, it got annoyed if you wanted to micro to move things around. That's my only problem with a system like this - if I have 10-15 cities, and like 30 or 40 resources, keeping track of them all and shifting them to where I get the most use from them is going to be a pain. But it should give another level of customization, and give a much bigger difference if you have silk nearby or furs than you did in 6.
I know in VI, it got annoyed if you wanted to micro to move things around. That's my only problem with a system like this - if I have 10-15 cities, and like 30 or 40 resources, keeping track of them all and shifting them to where I get the most use from them is going to be a pain. But it should give another level of customization, and give a much bigger difference if you have silk nearby or furs than you did in 6.