Ekko is Amazing
I think the champ is well balanced. A lot of people are complaining about how his ult doesn't have a mana cost for it, similar to other champs that don't like tryndamere. He is easy to kill and will take time for people to understand his weakness's. I have played him a lot and learned how to play vs him. Like any of the other champs if he loses lane early it is really hard for him to catch up. Not unlike Yasuo, Katarina, Akali or any other champ. The lack of understanding that people have of the new champs is what causes people to dislike the change. Play him, learn his abilities and find his counters, Yasuo counters him very well and 2 hits Ekko since his hp is so low.