Well, 11 episodes in, i have to say i like it a lot. I see some parallels to Fringe, which i liked as well, although obviously this one focuses on time travel rather than parallel universes - although one can argue we are yet to see what 12 monkeys are all about, since those 2 terms are fairly intertwined... the last episode "Shonin" was especially good, with all the reveals made it could have been as well season finale...
I am watching 3rd season of Vikings and 2nd season of Helix alongside this and its IMO the best of the lot, its not even close to me. Well, Helix is utter rubbish, so i guess its not much a feat to beat that one, but Vikings keep their standard of being kinda decent show...