The build quality seems excellent in general. The pen feels very dense, heavy, and sturdy, though there was a hairline fracture in mine. The stylus seemingly isn't removable and thus replaceable, so if you use yours, you might be better off with the full size pen. There are a few scaled measurements in Metric but only the base Inch side for Imperial. Unfortunately, the US is still stuck in the dark ages using Imperial so all in all, I don't think this pen was the right fit for me.