This root grapple has saved me unknown amounts of physical labour in clearing bush patches from my property. Once I learned the best way to use the different features, clean up is so easy and the result is a very nice clean site. I use this attachment on the front end loader of my 100 HP tractor.
My complaint about this unit, is the steel hydraulic lines in particular, are not well enough protected. Roots, branches and small trunks push through the back of the unit and bend the lines. The fittings being welded to the lines and cylinders, don't allow for tweaking angles on hoses or reversing hose directions on the steel lines. The top row of teeth are a little light and do bend.
Overall, an extremely handy attachment. Glad I purchased it.