It's just Forgecraft 1 with removed content (or rather content that hasn't been updated to 1.6 yet) and more gimmicky mods. Why bother.
Stained clay may have a few pretty colors (thank you Etho for showing me the light), but overall 1.6 was a pretty bad update. Most mod authors haven't put anything too amazing in their 1.6 builds yet either, unlike 1.5 that got, among other amazing updates, Tinker's Construct and Natura.
But...but....HORSIES!