Well, the great Spanish shopping center where you ...

Well, the great Spanish shopping center where you can find everything and if this is not because it does not exist, clothes, accessories, DIY, home, appliances, computers, supermarket etc ... in Madrid I recommend that of Nuevos Ministerios, it has parking and it is very well connected by subway, bus and suburbs.
At the price level, because there are things that are cheaper and others equal or a little more expensive than the market average, the advantage is that you do not get hit in the case of returns.