On Marina and Riviera, our preference will always be a B (balcony) over an A (whose “concierge” perks have little to interest us). And it’s a “no brainer” for many of us who prefer the B3 extended balcony (see pic)  And do know that there are four of the B3 extended balconies that have railing on two sides instead of only the outer one. We’re in one of them on Marina right now (47 nights- BCN-ATH-FCO-BCN-MIA). At many $ hundreds per person/per segment less than “concierge,”  one o