So far, all I can say about this guy is... wow

Vehicles:
No problems, all look good enough. Not much paint, but I think it emanates the G1 look, and something minimalist is fine for me, as the bright green makes it clear they're not trying to be realistic :P Weapon storage on Long Haul was a good idea, but it does make him look a little odd. Nice option either way.

Robots:
Wow. Sure, again the paint isn't that crazy, but as a group they look amazing. The lack of joints on LH and Scrapper do not worry me at all, as they have short enough arms with enough movement in the shoulders to kinda 'fake' an elbow.
Only real issue is the way Bonecrusher's leg's join seems prone to coming apart when posing, so one must be careful. Enough weapons to go around which is cool!

DEVASTATOR:
Wow. WOW WOWOWOWOWOWOWOWOWOW.
Amazing!!! IT'S SO BIG! I can no believe how bit it ends up being. Also very heavy. Ratchets are strong and stiff, and enough of them so he is very stable. Things hold together really well, just gotta figure out all the tabs etc first :P
Simply awesome; the arms I thought might have been a tad short but I have not noticed them

Overall, 10/10. Sure, some things could be improved (See Tarkara, which I might get so I can have it in robots modes), but for what you get all up, they did an amazing job.