I've always brought cheap £10/15 Dunlop (or similar make) wellies but find them very wide and not easy for long walks.
The supermarket 'fashion' wellies often rub, wear out really quickly and don't tend to have any ability to keep warmth in.
I've been coveting a pair of pink wellies I've seen in my local garden centre for ages. They are Briers (or something) and have a thin lining as opposed to just plastic.
They are shaped but still sensible width and shape.
But they are £25. 
I need wellies as ankle deep mud here!
Anyone experience of this make or of expensive wellies that aren't from supermarkets - are they worth the money?