In reply to Daniel Heath: I've got the ME morpheus and it's been good jacket. Very light and after some serious abuse it still surpises me by keeping me dry in those moments when it's so wet you don't expect it to.
On the negative side, I don't like the draw cord closures, they're really loose and need readjusting reguarly, especially the hood. You pull the cord tight around your crown and within five mins it's loose again. Also one of the volume adjuster cords broke after about 6 months, my own fault for tugging it too hard.
I'd second what the other poster said about the sizing, to be fair I'm a small in most things but a medium in Rab stuff. I ended up with the medium Morpheus and it's just a wee bit too big with a harness on, fine for walking.
In terms of the pro shell, it's really good stuff and if I upgraded I'd get it again. Performs really well and it's lasted ages, despite a lot of abuse.
Ben