I really enjoy listening to all of Dan Carlin's podcasts and he seems very reputable, but I've just now thought to make an effort to verify that everything he talks about is both accurate and balanced in its perspective. Are there certain episodes that didn't do a good job, or (hopefully) is Dan right on the money.
Here as well as Here are where this question was asked previously.
Here is a thread where Dan Carlin defends something he said on a podcast that was challanged.
Finally, [Here] (http://www.reddit.com/r/AskHistorians/comments/19hkqe/hey_everyoneim_dan_carlin_host_of_the_hardcore/) is his IAMA where he addresses some of your questions.