Simple and elegant... perhaps a bit "zen", if I can get away with senselessly mixing Asian cultures. The publisher claims on its website (which has a free PDF version, by the way) that the text has been corrected of errors and omissions... whether or not that is the case, it certainly has none of the glaring errors of some of the competing El Cheapo editions in the same price range. It also features an introduction with a historical story about Sun Tzu demonstrating his excellence as a general by training the Emperor's concubines to military discipline.
One of the better unannotated Lionel Giles translations, to be sure. And even though the lack of annotation means that you don't get the full richness of Giles' (and that of the ancient Chinese commentators he regularly quotes) nuanced (and sometimes corrective) interpretation; sometimes the footnotes/mixed-in annotations have a way of distracting the mind from The Art of War proper itself.
This edition should be a welcome read for both first-time readers (who should definitely consider also buying an annotated edition eventually) and those who already know the nuances and want to read Sun Tzu's masterpiece without constant the interruptions (however helpful and well intentioned they may be).