An interesting little shop. The prices are quite reasonable. If you haven't had time to buy something to remember your trip by, then you can choose something for yourself. If the seller likes you, you can also ask for a discount.
It is not very clear from other comments and the only photo does not correspond to the place. This is a store where you can buy groceries, electronics, cosmetics and some souvenirs. There are several of them in this wing of the airport, I advise you to go compare prices. But the choice is very small by the standards of Dubai airport