For casual but intense DIY (sanding the shutters of the house, for example) it is a good system as a whole, because of its power and modularity of its equipment. Ergonomic grip. The filter is effective, I have found in sandpaper discount DIY store, which fits perfectly and that is not of Black and Decker brand. The only problem that happened to me, not least, the filter cover which has not taken on my camera, after days qques utilisations.Vraiment, the manufacturer should strive to remedy this concern. That's what he does I would not put the fifth star. But I recommend buying a device of this type, eyes closed, no problem !!