I wish I could like Marc
...but I find him wholly irritating.
I see that the majority of respondents here on IMDB are fans.
I listened to his show on Air America, and even listened when he did the back office web series with Sam Seder. I have listened to hundreds of his podcasts. At the end of it, I just can't stand him and it annoys me that he has even a modicum of success. I can no longer listen to the majority of his podcast releases because of it. When Marc tells stories, I feel sorry for the 'other' people in the story rather than Marc.
So I guess it clouds my judgement when watching Maron. The show seems produced fairly well in the Louie/Curb Your Enthusiasm realm of shows, a little less dark than Louie and not as light hearted as Curb. But I would simply rather watch anyone else as the star than Marc.