I agree, looks good but layout its too simple, also 960px width content can be little outdated this times.
Header and navigation are really nice btw.
Is this a PSD? Sorry to say but its not ready. Typo can be improoved , not know why you use placeholders in this. The preview must have graphics. Also is nothing unique layout its very common. (how it works looks good and unique)
Anyway good luck!
Its not bad its just outdated. Layout its poor, typography can be better.