I did mine the other day. There was some very slight build up in it, but it was mostly clean at 53k.
Just to see how restricted it was, I tried blowing through it. Wow, even if the filter is perfectly clear, it still is restricting oil flow like crazy. I'm glad I got rid of it.
Except I think I might have lost one of the washers. I've been checking it a couple times a day to make sure nothings leaking, but I'm going to tear it apart again this weekend to make sure