Pretty good adaptation of the RuneQuest/Rolemaster rules. Gives them more broad potential for application while still maintaining the "feel" of Glorantha. Its also more complete and laid out more sensibly than the 2nd edition rules. The book is pretty attractive and you can tell some thought went into the design; the art is not personally my favorite but it has its charm.
The price for the PDF is the biggest draw! For $1.00, you definitely get your money's worth. Strongly recommended