I just finished watching this series. It held my interest and I will watch the second season definitely, but I really had mixed feelings about it. I don't really mind changing aspects of the characters for a television series, but the level of violence did really bother me. Additionally, it didn't make much sense. Dick violently murders and maims throughout the series but he is upset that Batman is going to do this? I am sure that there are people who say that he doesn't really kill anybody, but the intensity and violence of his attacks make this pretty unlikely. At one point he whacks several henchmen in the side of the head with a metal bar and he's not going soft.
I was really disappointed in Hawk and Dove as they are just so out of character as to not even be recognizable.
Another issue I had (and it was pretty minor I admit) is that most of the time nobody was in costume. At one point, when Kory discovers her background I thought she was going to find some new clothes but it doesn't happen. Hopefully next season.
One thing I enjoyed is that we have five of the original New Titans with a sixth established as in-universe. It would be great to see Wally arrive next season along with, hopefully, other original Titans.