I haven't assembled Devastator yet, but I've finally over the course of the week transformed them all into robot mode. I too really like the G1 head sculpts and the extra articulation lends to much more dynamic pose ability I feel. I love the metallic silver highlights across the team.

while they are sometimes quite simple in transformation, I'm very impressed with the elegance of the design so far. I too feel that the extra $10 and 2 month wait ( I never saw one at the mid year sale) is well worth the extra elements of the UW version. The corner of the coffee table is a little crowded at the moment. I like the G1 guns much more than the chest shield component guns.