What is Nick's first impression of the Buchanans and Jordan Baker in "The Great Gatsby"?

Nick's first impressions upon seeing Tom and Daisy again, are not favorable.  At the end of the first chapter, Nick says, "...I was confused and a little disgusted as I drove away."  What disgusts him is not their wealth, but their lack of character and decency. He finds out that Tom is having an affair and that Daisy is aware of it, and Daisy implies that it's not Tom's first affair. He is also disgusted when Tom spout his prejudicial thoughts.   Tom is also shown to be petulant and selfish in the first chapter, both through his actions and through what Daisy says about him. Nick also has a less than favorable opinion of Jordan Baker.  He recalls having heard rumors that she cheats at golf.   Despite these first impressions, though, Nick is open-minded and accepts Tom, Daisy, and Jordan for who they are and allows for the possibility of redemption.  He tells the reader he is open-minded and accepting in the opening lines of the book, so the reader is prepared for Nick to be this way despite his digust with these three characters in the first chapter.