Product review (5 stars): It was brand-new and nicely packaged. It is still in the package because ...
It is difficult to rate this product.  It was brand-new and nicely packaged.  It is still in the package because it is retained as a replacement.  I will not be able to determine the quality of the product until the current one fails and I placed this one in service.  If at that time my opinion of the product changes I will revise my review accordingly.