Product review (3 stars): the newer version has poor quality
We had one earlier version in our previous house, it was very good , quiet and efficient. So we decided to get this for our new house. It turned out that the quality of the product went down big time. After unpack the product, we heard noise came out of it when moving it. We opened it up and found out the power converter was loose , hanging on a cable. It took us some time to find the screws used to tight the power converter in place. And then we found out the plate the power converter attached to was loose too. We struggled for some time debating whether to fix it ourselves or return whole thing. Thinking about the hassle to return as well as we already have some of the prep work done, we end up to drill a hole to be able to attach the converter firmly on the body. Now, it is running, still efficient and quiet, but whether it will last is a question.