Bests & Worsts Reviews from Amazon

I already owned the GreenWorks less-powerful 20-Volt leaf blower. When the battery would no longer hold a charge for more than three minutes, I started pricing a replacement battery but they cost more than the leaf blower. Since I already had GreenWorks 40-volt battery & charger for their pole hedge trimmer, I decided to go with the GreenWorks again, since they offer the tool alone. I also liked the extra power this model has over the 20-Volt model. The battery charges very quickly - about an hour or two. This package does include accessories for vacuuming & mulching - not especially important to me because I usually dump leaves into a barrel. After fully charging the battery this morning, I used the leaf blower to clear my large driveway & walkway. I'm truly amazed at how powerful this unit is. It has a "Low" & "High" setting along with a thumbwheel to adjust the power on each setting. I seriously doubt anyone will ever need the "High" setting. On the "Low" setting, with the thumbwheel at max, even gravel & rocks went flying. The variable-speed thumbwheel feature works very well and it is convenient when you encounter pebbles or wet leaves or leaves in tall grass. Also included is a "Concentrator," which is a smaller-diameter piece that connects to the tube if you want even more power; again...something I doubt anyone would need. The runtime was one of my main concerns, so I timed it with my stopwatch. On a fully-charged battery, I used the blower for 24.5 minutes before it shut off & the charging indicator light came on. During use, I kept the speed on the "Low" setting & increased the speed as needed with the thumbwheel. Remember, the "Low" setting on this model is quite powerful when the thumbwheel is advanced to the mid - high settings. The instruction manual explains that the leaf blower is actually more effective on the lower settings. I found that to be true. On the higher settings, leaves & debris are blown up into the air & into your face, rather than forward where you want them. Besides, using the "High" setting reduces your battery runtime. UPDATE: 12-23-15: After only 8 months of use for a few minutes/day, the unit wouldn't maintain a set power level. During use, the blower speed constantly went from "Low" to "High." And the run time went down to three or four minutes. I took the unit to a warranty station & the person in charge informed me that "Greenworks' products are junk & they keep dumping them on us." I had a similar issue with my Greenworks trimmer; Greenworks wouldn't honor the warranty until I argued with them back & forth by e-mail. Their batteries don't last very long & they cost as much (or more) than the product. When the batteries die after a short time, Greenworks wants the customer to buy more. I'd stay away from any Greenworks product.