This library is the most powerful, reliable and convenient tool in the market who not only supports 99.99% of the fast-changing metadata standards at the long time, but the product support is also great for the long time. Especially in comparison that the hole idea, development and product-support is powered by a single person. The code is highly accurately written and laconic. I like that Phil extensively uses the Regex expressions through the entire library code.
My respects to Phil and keep up the good work!