Sometimes when reading some OSR related something I'm more interested in skimming it or reading it fairly quickly to get a sense of what it's about, what I can use it for, and possibly most of all, what ideas I can steal from it. Then as something I intend to use wholesale. Instead of writing up a full objective review I type up my impressionistic, often opinionated thoughts on it. This entry is one such rambling.
This system is comprised of two books. Sharp Swords and Sinister Spells (SS:SS), and it's Addendum.
The main book is a fairly well put together roll under system that is pretty streamlined and elegant. It feels like something that's been playtested and come about from a homebrew ruleset where someone has simplified the rules into a nice simple set that uses a lot of OSR conventions such as usage dice.
If I weren't such a fan of Whitehack I'd probably use it as overall I prefer roll under systems. Or to put it another way I'll probably combine elements of this with Whitehack as there are some things I think it does more elegantly and the two make for good companions. I like Whitehack overall but feel it has a lot of fiddly bits that come over from B/X where this system feels much more streamlined and to embody design philosophy of the OSR a bit more in some ways.
The Addendum book I'd suggest to anyone really. It's kind of a GM guide with tons of random tables and alternative rules. It's nice to flip through and anyone could probably find something useful for their game.