We are a single FA setup, and cant say we have hassles whatsoever with communication. I would actually find it odd to move back to a front galley setup.
A minor point if operating in the Mid East for example would be during Ramadan, it means the cockpit crew meals need to come from the back, with many passengers finding this unacceptable, in which case we generally survive on sandwiches and cold meals stored up front.
Also, if the pax are sleeping, its sometimes necessary to hold out on crew meals in order not to wake the them.
Those would be the only two negatives we experience with an aft galley. I like that its out of the 'cockpit', and feel that it opens up the vestibule somewhat. Real or imagined....
