It's awesome! It helps a technical-minded layman like me understand (probably like 1%) more about astrophysics. By far the most informative while still being entertaining thing about physics I've ever seen. Pick any video and watch it, they're great.
I've watched a few of them, but some of them turned out to be way above my level of understanding. Answers With Joe also sometimes gets into astronomy, and tends to stay within my level of understanding. Also Worth checking out.