I´ve listened to the Fred Anderson / DKV Trio Okka disk twice, and I must say I´m really impressed, possitively impressed. I´ve enjoyed it a lot.
My first Fred Anderson disc (I also ordered "Destiny" and "Vintage duets" from Chuck, but haven´t heard them yet), as well as my first Ken Vandermark; so these are "virginal" comments!
Anderson and Vandermark´s interplay is very interesting, their conversations filled with great fierceness on "Our theme", while there´s some calmed music on other passages. And I did like the rhythm section (I had only heard Drake on "Dried rat dog" and never heard Kessler before).
As for influences, I think I can hear a lot of Ayler, specially through the most powerful blowing. Oh, and these guys have their roots on the blues as well (just hear those walking bass lines on "Lady´s in Love")!
In short: very enjoyable and not too "out" for me!