Bought a set of these and shafted them with a set of FST 115 cut to X which really a stiff in most irons.
First impressions:
Like many new designs they are pretty light.
The finish on these heads is way beyond their price point. My friend who plays Callaway was very impressed. Rear weight cavity and a beveled leading edge. All in all a very nice clubhead. Weights on the low side and the long irons have quite a bit of offset.