I've been using this saw for pruning in my landscape maintenance business for 10 + years. It is excellent. It is compact. Folded it fits in the back pocket of my jeans always at the ready (even when I am climbing). The locking mechanism is easy to use. It keeps the blade locked open for safe use. It has never failed. The blades are very sharp and leave an exceptionally smooth cut. I usually replace the whole saw very two yrs. Replacement blades are available.