Started watching this last week and am halfway through season 2 already. It's a great show so far.
Maslany is absurdly talented. It's almost a masterclass in all the different little things that completely change how a character comes across - gait, mannerisms, voice, expressions - to the point where it's easy to forget it's the same actress playing all these characters.
should earn her the British version of an Emmy alone.
I know this is a really old post I'm quoting, but just wanted to point out that she isn't British, she's Canadian. Her British accents are decent, though not perfect - she sounds a bit Australian at times (by contrast, the guy that plays Felix is also Canadian and his English accent is perfect). That really is the only thing that isn't superb about her performances though, and even that she's pretty good at.