The truth is, we can all argue ad infinitum about the wrongness or rightness of this policy or that course of action, and of whether this politician or that senator has a valid criticism. In fact, we do not have access to the information necessary to make an informed judgement.
At the end of the day though, what really matters surely is whether we believe that our leader(s) are honest and principled. If we do, then we have to try and have faith in the decisions they make, even if we do not fully understand them, or even agree with them. If we don't believe that about them, then we ain't going to like anything they do, and we'll go around digging until we find stuff to denegrate them.
I happen to think that, in contrast to Clinton who was driven by his private parts and the morals of an ferret, and Bush who was driven by "God" (unfortunately the God of War), Obama is an intelligent, rational being, with as few partisan agendas as you can reasonably expect in a leader appointed by a democratic system.