Product review (4 stars): Installation could be improved if ......
Like the rangehood so far, perfect for asian cooking. 4 stars because rangehood is heavy and it was difficult for one person to hold it while other marked pilot holes.  If a paper layout, same size as rangehood could be provided it will eliminate the need to hold the hood in place for pilot hole markings. Also I did not use the screws and anchors but used 1/4 inch bolt and nut with washer for stability and robustness.