It's actually quite amazing and it's my number 1 reason why history will look at him, easily in the top 10 presidents. Personally, he's in my top 5.
Regardless of how you view Obama from the social spectrum, it's quite a feat to had cut the unemployment rate by 3.8% when he left office.
And before conservatives say "bu bu bu the debt." Every single president, including Trump have ballooned the U.S debt, Obama did it in order to save an almost collapsing economy.
I feel like Obama really doesn't get enough credit, especially when he had to make some really controversial decisions, like the auto bailout which were directly aligned with the recovering post 2008 crash economy.