I got accepted into the PBE a few days ago. The first thing i wanted to do was play Galio! Overall, I feel that the Galio rework was very good. However, I am really disappointed at his ult. I love the animation for it and I think the idea is unique. Except, it is just way too weak. In a team fight, Galio is normally the one to initiate it since he is a tank and has an AOE taunt. His cult SHOULD NOT require an allied champion to ult to. This means it is more difficult for him to initiate the fight and makes it more difficult to lane since he doesn't have an ult to use in a 1v1.
Those are just my thoughts so far. Feel welcome to comment and add any of your thoughts!