I do agree that sometimes the crew are un-necessarily rushing to finish the service. however, the service is generally nice and fine except to some pax that are obviously over-demanding like they could never ask things in one-go but to tell the gals to go back and forth lots of times with only one thing at one time.
Are you generalizing there are many many over demanding pax when you are not even there? Are you also blaming all those CC's indifference and loud chattering and no smiles to every pax out there?
Its high time they stop the blame on the pax or management and reflect on themselves! Excuses on others can only take you so far.
Let me add on, the quality also depends where the CC come from and where they are based.
Do you think if you let a group of Honkeys serve at NH or OZ they would be fantastic? 
I apologize if I sound like a rowdy ppruner here but I am just so cheesed off at my own airline! Sure everyone has a fair share.