The guys of Waka-Waka are definitely not lazy as they run around all day long offering to the visitors free samples of olives, nuts and dried fruit. I personally do not like this proactive manner of acquisition because it is annoying most of the time but that does not say that the products on sale are any bad. For olives, I prefer the nearby, more specialised Aceitunas Roldán but if you want to shop not only olives but also nuts and dried fruits you can not do too wrong if you choose waka-waka.