3.5 truly. Eliot's has three floors, so selection is a strength right off the bat. Prices seem fair, and books are in mostly good condition. They have a LARGE offering of science fiction and fantasy paperbacks.
They also have a full shelf of cocktail/drink books--perfect for when you need a housewarming gift for a young friend or family member.
It's a great place to get lost for an hour some lazy weekend afternoon. Just based on size and aesthetic, Eliot's is the best used bookstore I've seen so far in Toronto.