I'm extremely disappointed in him as well (without buying into the hope hype). We do have to take into consideration that the opposing party has declared that their number one priority was to limit him to a single term and had been entirely obstructionist.

Also, as President he is in theory limited in what he can actually do. Case in point: he promised to close Gitmo but is unable to do so because it requires Congress to make it happen and they are not cooperating.