When I first picked up Zbra, I was told that he had amazing dm/game sense and was fun to be around. He was just as I was told. However, our team had many issues with his behavior which led to him being cut from the team. When we gave him a second chance, he drastically improved his behavior and fit into the team. Iirc, his behavior at the time was heavily affected by stuff going on in his real life so I can't really blame him too much for behaving the way he did.
Overall, if his mental and behavior have improved even more since s14, he's probably one of the best pickups you can make.
edit: some grammar and clarification