I am currently enjoying a pure CO2 extract of Cascadia Kush in a vape cartridge by Optimum Extracts of WA. I'm a low tolerance, occasional smoker, so it only takes 2-3 puffs off the vape for this strain to kick in. Not sure how long effects last; I have been taking this before bed, so I am asleep by the time it wears off. But, I will say that I have been sleeping very well and awakening refreshed. So far, I have found this strain to be rather cerebral (a bit of out-of-body introspection), even a bit psychedelic (hearing voices in the HVAC system), but definitely relaxing after I ease in to the weirdness. I've been told that kushes tend toward the psychedelic, so this strain might support that theory.