At this point, you’re probably tired of hearing how Barcelona is overrated, expensive, overcrowded, and this, that, and the other. Listen, we’re not here to trash Spain’s most vibrant, cosmopolitan, sun-kissed coastal city. If you can get past the touristy tapas bars slinging watered-down sangria for $10 a pop, buzzing La Rambla crowds, and Insta-perfect …