In answer to the original question, no, he hasn't lost me. I'm satisfied with what I consider a solid performance. I didn't expect perfection.
I've lived under 13 presidents now, seven Democrats and six Republicans. Not one was without flaws. Not one was able to satisfy every citizen. Every one of them had to try to lead the country, some against extreme odds, and lead a political party at the same time. It's not a clean, idealistic business. It is, IMO, a constant juggling and balancing act, with dropped balls and other mishaps a foregone conclusion. If the main character, and his or her party, manages to keep in the air more than a few of the balls that represent my own political and ethical leanings, then I'm satisfied.
I'm very satisfied, under the circumstances, with the performance of President Obama in his first term. He was far from perfect. I assumed he would be. But he kept most of the balls in the air that I wanted kept there, and I hope he gets the opportunity to get some of the others up there next term. But I don't expect all of them in the air, certainly not immediately nor all at the same time.