Been here a few times in the past and it was pretty much only for the novelty. Now that the cafe is by itself they made the idiotic choice to cover the walls in chalk boards for people to draw on. Thus every table in the joint is covered in dust. And as people moved about you could see and taste the chalk in the air. Pretty much the ultimate turn off in a restaurant. Thee food is priced considerably higher than the quality received and the friendliness of service really depends on which of the stoners kids you get there. Almost every time I've visited the cafe the service ware had not been properly cleaned. If this place didn't allow you to dine to and toke it would be empty.
To save yourself some money, roll your joints at home and smoke in the many parks throughout downtown.