That's one week that I use either ground or on scaffolding or high on the tree itself to prune heads, except a string of oil consumption (small reservoir oil level monitoring) j have done a good job and am even more satisfied with this product, which at arm's length very well maneuver, even hanging on the tree.
I wished to buy another one to retrieve an intermediate extension because in this model no cable between extensions, they are taken in the tubes, Ryobi seems to be the same cutting head, but the extensions seem to be connected by a cable? which is less convenient for me.