Picked up Galvatron from target for $4 (pretty good for what you're getting) and I am quite impressed, although he is 100 times better without the chestplate.
I might get Sunstorm too, since he looks alright.
They're not perfect, but they fit as nice little display pieces, that look awesome in groups. The alt modes aren't too flash but then again, who here can honestly say that they're going to display them in alt mode. (not counting doubles)
They get a tick in my book. I honestly might start collecting these kreons.