Yes, a hoop coop can be very secure and work in all weathers. There are simple 'temporary' hoop coops, for meat birds, and more advanced structures meant to be safe all year for layers.
You will want electricity out there, to keep their drinking water unfrozen, if at all possible.
Mary
Leave the prefab coops alone, and get something worthwhile. A garden shed, or something similar, or build a hoop coop.
My dream coop is the Woods coop, although I've got a shed type coop with additions, and it's fine.
Mary