Good quality product. Looks good. However the on site instructions are misleading. It states that ducting should be pulled through the ceiling cut out and attached to the aluminium insert before fixing it to the ceiling. How is this possible as the duct plus the clamp will be much bigger than the 10cm cut out? I had to attach the duct from the loft. No fixing screws were provided in my delivery and those required are exceptionally small necessitating an extra visit to the local hardware shop. I think that sealant is necessary around the aluminium insert to achieve the best fitting. The lip on the fixing could also be bigger and the screw holes slightly bigger in my opinion. Once the aluminium insert is in place the white cover fits easily.