Watched the second volume, which is 14 episodes so far.

Okay, Grimlock doesn't sound like a fake Aussie anymore... but did in the first two episodes.

The Decepticon symbols on Grimlock bugged me, considering it wouldn't have been by choice after seeing his character in FOC... but since Steeljaw was scratching his out to remove a tracking device, I guess in this series the Decepticon symbols are a tracking/branding device, so whatever Grimlock did to earn a prison sentence, he was given the Decepticon Brand as a result.

Steeljaw (a shame that it is using a classic Autobot name) sounds a lot like Knock Out. I actually had to look up who the voice actors were of both just to see if it was the same guy (it isn't).

Damn I want some of those Decepticons as toys. I can now see why American fans who had been watching the episodes a few months back are so frustrated, and there is an obvious drop in interest in the RID toyline than the TFPrime toyline, because the non-gimmick toys are almost entirely Autobots (similar to the TF4 movie ratio).
I know that if a villain isn't featured heavily it won't sell as many toys as random good-guys toys, but most of these Decepticons are quite interesting, both as a character and how it looks in terms of both modes. If they don't show up again I can understand why Hasbro were only focusing on the recurring Decepticons for their toys, but still, I would have thought we'd see a lot of the Decepticons done as Legions, which are cheap and profitable (compared to larger sizes), or at the very least, filling out the 1-step toyline.