i grew neville's haze last year outdoors and wouldn't call it trippy at all. it's damn good but definitely not trippy...imho. c99 (which i also grow and almost always is in the garden in some form) is more potent and tastier. i have heard good things about william's wonder and am now trying to track some down to start this spring. but for a short flowering time with good yield and potency along with excellent flavor, i'd go with c99. have some ak47 x c99 going in the basement now and they're looking as awesome as always!