Johnski's and mine arrived at the "Southern Ocean Park" yesterday, but thinking it was due today, we've only just got them.
Unpacking them was a bit of a revelation.

Very well packed, 2 chargers, car and bike mounts, and armband.
Then we started to play with the buttons, next surprise was it has Australian maps loaded.
ignore those vertical lines, I think it's some Polaroid artefact with the phone camera, to the eye they aren't visible
And here's a comparison with the GW52 unit and display size.

There's not much difference in plan view, the Motion is about 2mm shorter, but the Motion is thinner. The difference in display size is substantial.
As soon as I sail with it, there'll be more stuff.
I've set mine to 5hz and I'll wear it in my helmet along with DIY V3 also at 5hz. I'm expecting very close results. When I get to a windows computer with Ucentre I'll set them both to 10hz.