Man... it's SO good. I had a couple bottles last night. STILL incredible, fresh and tasty. Picked up slight roast-y overtones, a little sweet, full-bodied and luscious...
(Is it a problem if I want to make out with my beer right now?)
It's Lithuanian because it's based a variety of porter called Baltic Porter, but I am 1/4 Lithuanian, so it's my favorite of the Baltic states.
I have never done AG, so I can't help ya with that conversion.