Collado Villalba, Spain

With a population of 67,274, Collado Villalba is hardly the tranquil escape many imagine. The town's high density of around 2,400 people per square kilometer creates a persistent bureaucratic headache for residents. While the Mediterranean climate may be pleasant, the high altitude of 917 meters brings its own challenges.

On the plus side, Collado Villalba benefits from excellent public transportation, with a train station servicing multiple Cercanías lines as well as long-distance routes. An extensive bus network also connects the town to Madrid and surrounding areas. However, these transit options are necessary to navigate the town's sprawl and access basic amenities.

In short, Collado Villalba is best suited for those seeking the convenience of proximity to Madrid without the capital's sky-high costs - provided they can tolerate the density and bureaucratic red tape.