Pretty good, I think! (Maintainer.)

What I liked best about it is the portability, the scoping, and the preprocessor, which I prefer in particular to how many other assemblers do macros, and that's why I ended up taking it over (though Andre still did a lot of the code in this release too). The linking is not something I personally use much but other people do, and the O65 binary object format it uses covers a lot of use cases.