I was looking for really wide calf wellies and not finding any that would fit well enough but these do with room to spare.
The foot length matches ok and allows for thick socks and toasty feet. They appear to be of sufficient quality.
However you can't have it all: the foot is also very wide as is the ankle which doesn't suit my legs quite so well making them appear baggy and lacking in elegance. The buckle on the inside of the leg rubs against the opposite one. I would have preferred to only have a buckle on the outside or on the back of the calf so as to walk more comfortably without snapping them open accidentally or worrying about the breaking off. I believe this might make putting them on hands free easier too.
I've had them for about a month so cannot say anything about how long they last yet.