Barcelona "Blue Bus" T3 PORTBUS

[Plaid Princess]

Question for those TA and Med cruisers... has anyone made use of the Barcelona port bus system? The "Blue Bus" loops the Columbus monument and the port on a continuous schedule. It actually picks up a short walk down the Ramblas from where we are planning to stay pre-cruise, and I'd love to use that rather than deal with taxi's on embarkation day if it's realistic.