Had two of these. Flower was about 60 days if I remember right. About 2 oz dry/cured per plant. No problems in a DWC grow.
It was pretty standard as far as Northern Lights goes. That is to say, it's pretty good weed.
Mine was a little more body than head. Pretty strong high, with a chance of couch-lock.
It was really good for long day kind of stress, and insomnia too.