Orphan Black. A storie about all my sestras

I have watch a lot of series last year 2017. But one of the bests is clearly Orphan Black.
Such an impresive story, a crazy, futuristic, scientific, macabre, and amazing story.
I can't stop remember some of the scenes of the show on my mind everyday, since I ended it.
I really have to say that Tatiana Maslany is an awesome actrice. She doesn't play one or even two rolls in the show. She plays the five principal characters and also many other clones that often appears in the chapters. And this is a very difficult thing to do, cause she is always filming alone when she is suppose to be with her "sestras" and she can become any of them, 5 characters with a very different mood and apparence.
The only thing the sestras have in comon is the face, but nothing else, every single one is a misterious character that hasn't got anything to do with anybody in the world.
I really enjoy watching every season and every chapter of this intrigue and mistery TV show, so I really want to let you know that it really worths it.
I watched it on Netflix, where you have all the seasons with a great quality (is an original Netflix production).
If you watch it, tell me about your experience.
Who are your favorite characters??
Mine are Sarah because of her strenght that make her never give up and Cosima because of her intelligence and her big and lovely heart.