OK so I'm a little bit more awake and here are my thoughts on Devastator:

The combined mode is nice, he is very articulated and has a better grasping of his gun than Ultra Magnus. His gun is a bit bent, which is really odd and I have no idea why (this isn't a one off thing as there are multiple reports, unlike what Gokitimus has dealt with). While he doesn't have articulated fingers, you can always do a little bit of customization to give Devastator some fingers.

With the robot modes, the one I'm not really a fan of is Long Haul. Is it just me or when you try to turn his legs around, it just makes this cracking noise that makes you fear you're gonna break something? Other than that some of the flaws seen are Hasbro's problems and will be fixed with the TakaraTomy version (which I am uncertain if I would get, knowing that it's gonna cost more than $198, including shipping)

I didn't mention much, but I would like to say it is a nice toy. It gives a good modern update on the toy I bet most of you had as a kid. However the construction army does feel like its lacking some stuff, which I mentioned will be filled in the TakaraTomy release.
So overall, if you want a giant green robot thing, I don't care which version you get as the Hasbro version is alright. If you want the constructions, wait for the TakaraTomy version, because apparently they have better weapons