Barress was not op. I'm one that had her and didn't even use her until recently. The only reason I use her is for her leader ability. Lumi, and jc I used because they bring more punch.
I had to switch due to Leia massive dmg out put with her crit bug. It was first time I didn't finish 1st in my bracket. So now I have to use her for the health buff. It's only way to beat the person Leia with qgj leader. If not for this person, I still wouldn't be useing her.
With that said. If you had issues because if barress before, then your issue wasn't barress at all. It was the fact you had crap dmg., or no idea how to focus a target down. But instead of noticing you own falts, you wanted to blame a character. If you could not kill 1 character in the 5 turns it took her to recharge, then you had issues and always will have issues, but you just can't see youre the problem not the character.
As far as people getting refunds. Who cares? It's there money not yours. It doesn't hurt or help you in any way now does it? And no I didn't buy the pack, I got her in a 4 pack pull so I will not be asking for a refund. But grats to everyone that gets there money back.
As far as the nerf goes. Maybe it's because all my characters in my PvP team are 7* except for barress, but she still heals pretty good for me, no not as much as she did when I first started useing her, but still heals pretty well