I love, love, love Waitrose. We have a choice of Waitrose, Tesco's, Iceland and Netto's in our town and when we had dd and things were a bit tighter we tried Tesco's but if was absolutely vile, the staff were rude, it was busy at any time day or night, and our shopping didn't cost any less. I know i sound snobby but i really am not. My family always went to Tesco or Morrissons, but in our town i just find it so much easier and nicer to go to waitrose. We do have to be careful though as its very easy to spend loads if not restrained
My worry would be that it will gradually go the same as other supermarkets and it will be just another packed, busy supermarket