After a year of use I can say this is a great blower for an electric one. Sure the CFM is not as high as a large backpack blower but model 51609 is great. It has a metal impeller which really shreds leaves. The inserts to change the nozzle size, which increases MPH) is great for moving wet leaves. The variable speed works well to not move too much mulch from around flowers. Weight After extended use especially in the vacuum mode it does wear out your arms. I am 5' 8" so the vacuum tube has to be either a bit out in front of me or I have to hold the main unit higher than is comfortable. Performance Works well in flower beds and my gravel driveway and really anything that is close to the house so I can reach it with an extension cord. Yes this will move gravel and rocks up to the size of a golf ball. I highly recommend this blower/vac for anyone with a yar that an extension cord would reach or for a yard that you wan tto use it for just moving leaves away from the house.