A quick glance at the sources shows immediately what Go offers per se in terms of readability and maintainability. Go strongly encourages, even forces at compile time, certain style constraints that results in such a delightful code to explore. Were it written in C, you'd have to deal first with arcane #whatever directives in .h and .c files and strange makefiles and such stuff.
I hope someday Go will get the acknowledgement it deserves as a real piece of genius. I really encourage recommend just to take a 15-min try at http://tour.golang.org.