One reviewer said that the acting was bad, but that isn't it. The acting is good, mostly.
The writing is cliche and a bit over the top. There are scenes that are unnecessary (probably rationalized as "character development"). The editing is a bit quick like there needs to be a beat or two after dialogue before a jump scene - It has the feel of a "previously on..." bit.
The directing improves as the series progresses.
The camera work gets better, too. In the beginning, it looked a bit jumpy like they were going to go the "24 method"... but thankfully, they did not.
Probably the biggest shame is Neil Maskell (Rasin Boy in Utopia was awesome!) didn't get a bigger roll.
If you are into sci-fi, it is worth a watch. If you like to deconstruct tv shows, then maybe you'll have better insights as to what is flawed that I have. Good luck!