OK for a toy, hard to clean lens

Needs a wider angle lens; tunnel vision as it is. Like you're always zoomed-in.

Quick wipe of the lens is impossible in field conditions, because it is recessed so far back into the housing. One drop of muck on the tiny lens and you're finished. Must carry squirt bottle to clean.

Display is also recessed and the housing casts shadows onto the tiny icons that are on the extreme edge of the screen.
Set it up somewhere bright before you start recording.

No windscreen on mic. Audio is almost always unusable on outside footage.

Image stabilization makes video kind of "wavy" It would be nice to be able to deselect this.

On the positive side, you can change out the batteries and SD card without unmounting the unit.