This place is just shoveling money, don't expect anything like customer service, or even politeness. There are plenty of other dispensaries nearby, they will all treat you with basic decency. I'd bet good money they've paid for most of the positive reviews here and elsewhere.
It's like a dispensary with the ambiance of a really crappy head shop. The manager was quite condescending (like a crappy headshop), bought an O-pen cartomizer which was defective, they exchanged it after some grumbling...for another defective carto, which they refused to exchange.
The reason it really bothered me is that O-pen has a "no questions asked" return policy (likely to save that quality control money without rubbing people the wrong way) so it wouldn't have put the guy out in any way not to be a jerk about it, he just felt it necessary I guess. Spending $80 on a useless piece of glass and metal was frustrating, but being hassled about it was infuriating.