To me it feels like all the subtly is gone. What would have not been explained in the first two seasons is spelled out in the third season. It got a whole lot less interesting or engaging.
Completely agree. The first two seasons had more of an "unexpected consequences" vibe. I never got the feeling they were trying to lecture me, I just left wondering "Hmm, I wonder how I would react if this was the reality of the world?". I've only watched 3 episodes of S3 so far (1, 2 and 5), but I couldn't help but feel like they were all drawn out and beat the viewer over the head with the message. At one point in E1 a main character literally explains to the viewer what is going on. And E5 was particularly bad. There was a very interesting point to be made on the realities of genetic screening and they just barely touched on it.
I started watching S1E1 after having watched a couple of other episodes from season 2 and 3. I quit watching it halfway. Not sure what was subtle about it. Honestly if it was the first episode I'd watched, I'd probably have written off the whole show altogether.
S1E1 feels like an entirely different show. It doesnt really show near future tech it just shows something that could happen today. Try the rest of the first season. Very worth re approaching.