So I've spent a few days listening to the channel and here are my thoughts. It should be noted that these shows are all in their infancy, so I would guess all of them will get better over time. As someone who has appeared on over 100 different radio stations, I realize how tough it can be to fill 3 hours, day after day.

9AM to Noon (All times EST) Unfiltered is co-hosted by Lizz Winstead, Chuck D and Rachel Maddow. Show seems to run by Maddow. Winstead was one of the creators of the Daily Show. (Kilborn days) Overall, I was not to impressed with the show, as it has a whiny feel. Chuck D. doesn't say a lot or (Bring the Noize).
Every once in awhile, they should have cuts of Flava Flav saying, "Yea Boy!" or "What time is it?"
Rating C-

Weekdays noon-3pm The O'Franken Factor: Drug-Free Radio
Liars beware: Al Franken and co-host Katherine Lanpher. Yeah, it might be a little too dry and witty for the masses, but I've been really impressed with the show. Lanpher is really good and Franken is consistently funny and educational. I love the title of the show, but let me add that I think Franken has went after O'Reilly too strongly, as he seems to be the most fair-minded host on Fox News.
(O'Reilly has been critical of Cheney and Ashcroft, is against the death penalty, and believes we need to curb our use of foreign oil. Even though I don't agree with the guy a lot of the time, I think O'Reilly catches a bad rap, as he is willing to have liberal voices on his show.)
Franken's show is the best on the station and I give it an A- Rating.

On XM radio from this point on, the programming differs some from Air America.

3:00-6:00 PM The Ed Schultz Show
THis show is syndicated by a small radio company and is not on Air America. Broadcast from Fargo, ND, Schultz is a former Republican who seems to be trying to be the Liberal version of Rush Limbaugh. The show is in a lot of smaller markets, besides on XM and I would say he has the best style to gain an audience who aren't of the "liberal elite". He gets some pretty big guests, but I don't care for his style or substance. Hope he reaches some people who are swing voters, with his populist style, though. Rating D+

6PM-7PM ET The Randi Rhodes Show
Randi is on for 4 hours on Air America and what I've heard of her show, I like. She is abrasive, opinionated, and not at all politically correct, like so many liberals try to be. According to her bio, she has been doing talk radio for over 10 years, which definitely comes out in her style and the way she deals with callers. Rating B+

7PM-8PM ET So What Else is News Marty Kaplan
Listened to just a little of this and the guy seems to have a lot of guests and a lot of parody bits. Not bad, but haven't listened to enough to form an opinion.

8PM-10PM ET The Majority Report Janeane Garofalo, Sam Seder
This show is better than I expected, as Janeane is not one of my favorites as a comic, though I do like her in acting roles. Both hosts are strong in their opinions and are both very far to the left. Janeane had Howard Zinn on and she was praising him like he was her ultimate guru. I like Zinn myself, but I'm not a big enough conspiratorist to think the guy is infallible, as a world led by Zinn would be complete chaos. Rating B

10PM-1AM ET The Alan Colmes Show
Just on XM version, I have not listenend to this show, but I will still give it a rating. FFFFFFFFFF
I hate this guy, as he was chosen by Fox News to be their "Liberal" voice, because of his wimpy arguments and bizarre looks. I know the guy has come from nowhere to cash a big check, but he has all the honor of a Doctor who speaks as an expert for Tobacco companies.

I haven't listened to Morning Sedition with Marc Maron, Sue Ellicott, Mark Riley, (6AM-9AM ET) but I'm a huge fan of Maron, who is one of the top 10 standup comics in the country and I believe is the closest thing to Bill Hicks around today. (Sometime soon I will rate the comics, kind of like what Comedy Central did this weekend.)

Overall, I have heard no glitches on XM for Air America, but I know that on the local stations, (NY, LA, Chicago, etc.) there has been a lot of technical problems. There is a market for this channel, but it is going to bleed money for a couple of years, until they get the whole concept figured out. One thing which is better than most conservative radio is that the hosts don't give a free ride to the Democratic party and don't seem to be screening calls, ala Rush.

Hope this has given you a window into the channel on XM.

Scott