Brent our cold storage shed should be built this month. Our decision came down to either a pole shed or Zipperlock building. Pole storage is cheaper than Zipperlock. For our building it was 20 k difference. While we really liked the Zipperlock shed but the pole shed made more sense to us with regards to door options and the the straight walls. Also the builder we hired is from just north of you and in our opinion does excellent work. (He built our workshop). I guess being familiar with the builder and trusting him was a major factor in making our decision. We have a neighbor close by with a one year old Zipperlock building in case you would like to view one first hand.