Absolutely worth a try. I did not read reviews on it. I ALWAYS read reviews.I'm thinking of going for one of these:
https://arkus.co.uk/medium-chicken-house/
They're not twin walled but external insulation is available it will be inside my converted glasshouse which is always at least 4°c warmer than outside in the main run.
Be interested in your thoughts.
I am concerned about rats but so far they've not bothered chewing anything plastic in the run, including a large plastic tub of sunflower seeds.