I used Colorado Blue Spruce tips for mine (I live too far away from Sitka, AK). I think I didn't use a full quart for my brew, since I didn't know how much I would like it, especially since I was trying it in a lighter beer style than most spruce beers. I'll check my notes for the amount I used.
My first taste of a smoked beer was a homebrew from someone who loves a TON of smoke character, and I really didn't like it. Luckily I have ventured to try other smoke beers and have been pleasantly surprised by a few. If I make my Grizzly Koelsch again, I'll save a bottle for you to try.