I do own 2 copies of the vf-19 advance but not the Arcadia. My slight gripe is that the transformation feels more fiddly in comparison to the yammie vf-19's, with some seemingly over-engineered moving parts. (Case in point, the neck cover integrated into the shield... it's a nice gimmick, but u still need a neck cover with gerwalk mode, and the integration just doesn't feel like an elegant solution -- the earlier 1/72 and even the 1/65 vf-19's had potentially better solutions)
I'm aware that my just holding up hope that the Arcadia yf-19 has the more solid feel and more straight-forward transformation carried over from the Yamato vf-19's... to be fair the vf-19 advance is an awesome design in itself, maybe I'm just expecting too much.