I think the connection for the Gunpod is going to be more sturdy, as it is not a circle, but a rectangular protrusion.
The head is good, it is perfected. The seam didn't bother me at all. Hell, this isn't such a big step above the 1/48 head, but the 1/48 was ages above the MKI version of the 1/60 POS.
Proportions in the chest and shoulders have suffered a bit and makes the VF-1S look a little like a runt rather than a broad-shouldered athlete.