the A320 came in during my last 6 months in Moscow and I avoided it like the plague. I mostly used to fly in Y and was always amazed that J passengers put up with being jammed in for their £1700 return. Not only that, but the 320 was nearly always delayed. I hear the J seats on the SU A321s are pretty good and it's £700 less for a return...although you do have the problem of SVO and dodgy food.