Lots of people saying the new store is too far out, but it's all relative. Depends where you're coming from. If I go from work it's actually closer for me. I've recently moved to Cambridge street so now walk home down the riverside and it's a lovely walk, admittedly will be better when the shops/restaurants under the multi storey open.
As for how busy M&S food hall is, I've taken to popping in on my way home to pick up something for tea and it's been quite busy at that time of day. Maybe people are like me and have changed when they go in now it is open later? Also as it is so much bigger than the old food hall has it not occurred to anyone that it's just as busy, it just doesn't look as if it is because there is so much more space?
I agree it's a tad chilly in there though. Overall though the new M&S is far better than the old one. It looks lovely and is nice and spacious with a far greater choice than before. It's better laid out, it used to drive me mad going in the old one and not being able to move down the central aisle because I had either got stuck behind a slow moving oldie or a group of people were chatting.
As for the reduced stickers, it's to be expected with a new store. It will take a few weeks for them to gauge how much they need to order and new stores always err on the side of caution and stock too much rather than too little and end up disappointing people when they run out. Thumbs up M&S.