That's true, if you want to buy anything from them, be prepared to spend a lot more time than needed. The store I sometimes go to is organized as basically one long aisle spanning two floors. Contrast with Home Depot or any supermarket, where you have several parallel aisles. So yes, the store is not optimized to make find what you want quickly -- I guess they want to make buying from them an "experience".
To their credit, they do give away those little maps of the store -- don't remember if they include the shortcuts on them. Oh, and the smoked salmon is good too.