I am not sure how much do I trust an article about Madrid's metro that doesn't mention the fact that one of those expansions (Line 7, in San Fernando de Henares) was done with political instead of technical criteria, ending up in several hundreds losing their homes and a metro line that has to close every once in a while for repairs.

I am also heavily distrusting of the "75 percent of passengers described themselves as ‘very satisfied’". The infrastructure might be ok now, but the frequencies are getting worse (except when the pope visits, in that case they apparently have the money) and in rush hour everything is packed.