I like this better than the British version. While the UK one was good, I tended to miss some of the jokes due to regional differences, and they are a few years older.
I've watched some of the repeats (which are on every night) several times, and it's still funny. A very talented group of comedians, because we all know that improv is really tough. Silly, and a lot of fun, plus I love it when Drew laughs at Colin.
Oh man, you have to see the episode where Richard Simmons was the guest...