Smoked many strains and I gotta say if you get your hands on some properly grown OGK, you won't be disappointed. My personal favorite. Leaves me feeling blitzed after just one or two 18" rips, uplifts me a bit with a lot of great long lasting euphoria, eventually mellows me out to a stoney trance where food and music are very good. Effects last strong for me for around 2 - 3 hours depending on how much i smoke, and i have a pretty high tolerance... Great strain to enjoy on a day off!