This one was interesting, but it felt like it was still 'all the other evil twin' shows that've been done.
The most cliche part of the episode was Rodney coming in to 'save the day'. The 'evil twin' part was the 2nd most cliche.
It reminded me a LOT of that stupid Highlander episode where Duncan had to kick his own ass. Booooooooooring.
I did like the part where everyone was sort of 'afraid' of Shepard for a while at the beginning though - that was kind of fun.