Devs covers the interesting and relatively novel topic (for TV drama) of determinisim. It deserves a better score for its originality but I cannot be that generous when it is so flawed. The actors put in good performances, the sets are pretty good and effects are more than adequate. Many of the reviews for this series state how slow it is while others state it needs to be slow to be "moody". My truth is that it is way too slow and too long. The moodiness does not require such slow progression. To be honest you could watch episodes 1 to 3 and the final episode and "get" more than 85% of what is going on. I can understand why many have said that they struggled to make it to the end. As well as being slow there are a number of "red herrings" that I felt were just unnecessary such as the vast majority of Kenton's input as Head of Security. Dare I suggest, it felt like having secured such a notable actor as Zach Grenier, the studio was fleshing out his part to ensure they got their monies' worth. A lot of what he does seems incongruous to the rest of the plot and just plain unnecessary. I also suspect that, as many have also mentioned, that the last 15 minutes were something of an afterthought probably forcibly imposed to satisfy the network. The story would have "stood up" and likely have been better without it. At, the very least, the addendum could have been less than 5 minutes. Overall, I have given it 7 because I think new ideas and intelligent concepts should be encouraged but just wished it hadn't been such hard work to watch - the length of the series did not add gravitas.