I bought this to put all the baseboards, trim and moldings in my basement. I had to try several cuts to get the right angle before buying this, but now I can get well fitted corners with just one cut. The angle finder is made of die-cast aluminum with a black finish and is very durable (no plastic parts). The two pieces fit together snugly with no loose contact. I can read the dials well as they were big enough and white on a black surface. Miter saw adjustment is fairly accurate once the miter saw is calibrated (my miter saw is slightly offset, I knew). The only minor thing is that a more detailed guide on how to use it is needed for a beginner like me, but I've found that there are a lot of them on the web, so this isn't a big deal for me. Overall I'm happy with it. That saved me a lot of time and material.