The store credit isn't as much as I would like, but the store has a very good selection, they take almost all of the books I bring in. They do not take books which have been discarded by the public library (understandable, I guess). It is a convenient location, they seem to have good hours being open on weekends and evenings. I don't think you can find a better used bookstore in Calgary. Other competitors are pricier. They also have very good sales periodically, sometimes $1/book for which you would need to pay cash for (not utilize the credit).