It's best to have the camera in your own hands and then you'll truly know...can't trust clips online and people's workflows.
...and with the GH5 firmware rollout schedule, it's difficult to know exactly how good the camera might eventually get. Do I understand correctly that h265 encoding is available later? I know this isn't Sony, but am I the only one worried about heat management? Specwise, I think the GH5 sounds pretty darned good, and I'm looking forward to seeing what an improved encoder will do.