Brilliant tool for keying up monocouche/backing coat. The diamond face works sound; pulled the slick up a treat. It's really light which is handy when you're working a big area proper relief on the arm by 3pm. However you know you get what you pay for on build quality. The plastic handle does feel flimsy compared to my old metal one and I'm worried about dropping it and seeing the whole thing crack. Also found the edge can sometimes catch if you're feathering you have to watch it. Size is good for average applications. Great value for money at that price point performs like a 5-star tool but the lack of true robustness means it has to drop one.