I stopped at the beginning of s2 as well, while I wasn’t a big fan of Kara/James, I really disliked their reasoning for splitting them up and in the media landscape of 2016 wasn’t really in the mood to trust writers who did that kind of thing. But I do think Melissa Benoist is luminescent as Kara and generally have no particular feelings about it otherwise.
I don’t mind CW as a network, they don’t do anything worse than the other networks except for being more transparent about it, but the specific kind of drama they love isn’t always my thing.