[Dark Hayabusa]

Shin Densetsu's revoltech comparrison is quite apt. PAK doesn't have a consistant scale throughout all the different lines and, like in the early days of revoltech, the paint and face sculpts are inconsistant at times. That grey smudge in the face is what put me off buying arkham Joker, and the QC isn't the best. I've been lucky with my Solid Snake and Gray Fox. The only issue is sometimes gray fox's left leg pops off and the torso doesn't seem to be 100% lined up straight with the rest of the body. But not enough to ruin it. And, of course, they can't stand.
You're right not to get that snake Dr Kain, snake is worth no more than $70. He's big and detailed, but it's not a hot toys figure