PROS
Because of the wide variety of items displayed and the layout of the shop designed in a one way format results in customers seeing everything available. They might therefore end up buying even something that they hadn’t thought about
Convenience for the customer because everything is boxed and they do their own assembling. It makes it easy to transport (on buying and when people move)
Also saving shelf space for other IKEA products and reducing transport costs for the consumer hence resulting in the lower prices
Using unconventional names for their products that people can easily remember (belief is that people remember names better than they do codes)