I don't really like the one at Crown Point - you're right it's small and the staff generally don't seem to be quite so interested. Pontefract is bigger than Crown Point but I don't think it will be as big as the one near IKEA. I haven't ever been in there but it has a Vets for Pets in it I think?
Am liking the sound of this hay tray though so will try and get to one and have a look. Does the hay rack look anything like this one or is it more a manger type rack?
http://m.zooplus.co.uk/shop/small_pets/accessories/hay_racks/83037