Haven't used the NW WC in BOS because there is no NW/DCA service. Actually gave up on CO fater too many delays in/out ewr. I have heard the NW gates. etc at BOS are not ideal. The new Term A is really a nice facility. I have flown into that terminal for years (remember Eastern then CO used that term for years). I also like it becuase its the firts stop on the car rental shuttles.