I think it's awful. The first four episodes were lame, then they retooled it and it became even stupider. The premise is unfocused and makes no sense. It has none of the thematic weight of the original, but just ineptly copies random elements from it with no rhyme or reason. The cast and characters are drab and unengaging. The virtual sets and compositing are poorly done. The story has no direction and no logic. The main characters are fighting a guerrilla war when they should be fighting a propaganda war, getting out the truth about the Visitors and creating doubt. As such, they're just stupidly making themselves look like the bad guys. Although it's not as if the show has bothered to give any clear idea of just what the Visitors' evil plan is.
The one bright spot in this show is Morena Baccarin. She is captivating here, and has really elevated her acting to a new level. She's the only reason I bothered to watch the whole season.