As someone who still supports him, I think he could be doing a better job. As far as the debt goes, I believe he's not fully responsible for the increases we're seeing in his administration. By that I mean he's not sending us further into debt by what he signs into law, rather he's just not ending what Bush started. The NY Times posted something a while back that showed that Bush-era policies were responsible for a vast majority of that number, and Obama's accounted for less than a trillion (which is still a lot).
Not trying to beat a dead horse here by saying that it's all Bush's fault, but he really had a big role in it and Obama is guilty of not doing enough to stop it. In my mind
p.s. sorry that image is so damn big