Their mirrorless cameras are definitely not "meh", and have certainly succeeded in shaking things up.
Sony cameras are still meh, they still overheat. They are relatively frustrating to use. Their autofocus tends to hunt in low light (great eye AF notwithstanding).
They win at video, almost overwhelmingly in specs. Unfortunately, I am into photography, not video.
This also contributes to extra sensor noise in long exposure shots in the dark, which Sony tries to mitigate with software. This leads to the infamous 'star eater' scenario.