I'm surprised it was still usable for you...bad AF ruins productions.
But better than nothing, I assume.
I know you were replying to Ahalpert here, but with the deeper dof afforded by M4/3, I could have stopped down and gain'd up a bit, use of autofocus not necessary. But what we are talking about here is when AF is doing a decent job of keeping your subject in focus, but subject movement is causing small changes to the focus that are not seen on the subject but are seen in background or at the edges. This would go unnoticed if you were shooting handheld, but when locked down on a tripod, becomes a problem with a whole lotta lenses.