It's nice if you don't arrive late or leave early, and live on the silver line. On the weekends, the price is more than well worth the extra time.

Just wish they had an express bus from downtown. Madrid does that despite having not one but two separate rail connections (metro and commuter rail), but the bus route is available 24/7. That makes it the best option in the evening hours when train service slows or ceases. Actually, would be awesome if any of our airports had that.