I have to say that I really enjoyed this episode. I have to say the best one since the pilot. Finally the Decepticons have arrived.
Lugnut and Blitzwingt come across pretty well in their respective roles as the hardcore subordinate and the insane tyrant. I couldn't put my finger on who Lugnut's voice pattern reminded me off, it through first . viewing, but on second viewing I realised that he is a cross between Bruticus and Devastator.
It was also nice to see some more development, as well as the soft side of Ratchet. Sari was annoying and even more childish as usual, and once again after being told not to use here key for the uptenth time, she finally seems to take the hint. Well until next week that is, when she can't be bothered to scratch her own arse, and uses the key on a toy robot to do it for her, that leads to serious consequences.
There is one bit that confused me slightly, but I don't want to spoil it, so I will wait for a few days to give others a chance, before I can ask others opinions. Also why do they leave the Allspark on their ship unguarded at the bottom of the lake? Just seems like poor planning on the Autobots behalf.
Oh and I loved the surprise at the end of the episode. It left me smiling and rubbing my hands in glee for the next episode.