I became the website's regular reader when I started playing RPGs few years back. Whenever I needed information on any role-playing games their website poped out the most when googled. So when they launched the RPGCast I gladly added it to my playlist.
Just like how they cover the RPG news on their website, RPGCast inlcudes all news in the RPG world, with additions to the hosts' experience with certain games.
Because all of the video gaming podcasts are geared toward "underage" males, RPGCast's grown-up approach is a big welcome in my book. This is not to say the hosts are not funny or anything; I often had to stuff my chuckle while listening to them at work.
All in all, the characters all have very likable personalities, good writing, and it's fun ... oh, wait, this is about a podcast ... so the characters have very likable personalities, good writing, and it's fun.
I only wish there are more podcast like RPGCast.