Lots and lots of good stuff you might want to buy. They give out prices and shopping guides for online buyers in particular, but not limited to. You can easily search a particular product you want through the categories or through the search box and particular brand names. I did have a hard time with the site because it was in Portuguese, good thing my browser can instantly translate it to English.
When you do get to decide what product to search, just simply click on any categories or search for it and they will give you the best deals they can find. It was really easy, it took me several seconds to find what I wanted and several more to get the list of prices and the names of the stores who sells it. I guess it's because of the simplicity of the site that makes it so easy for me to navigate around. Again, I had problems understanding some words that weren't translated to English. In addition, the shopping guides are limited to Paraguay, as well as, the stores and shops. It would have been nicer if it wasn't limited to a particular location, but then again, maybe the intention was for a specific area only.