Can someone give me a major update?

I'm a DK so that would mean the Arcglave (sp?) and the spear thingy, but I don't use spears.

Anything good about Magatia PQ or the inside of Crimosonwood Keep?

While the Crimson Arcglaive is better than the PAs around its lvl, it's nothing extraordinary.

Magatia PQ ultimately rewards you with Horus's Eye, a pendant equip that gives you +3 to the four basic stats. It's not tradeable I don't think.