The G150 is not the Astra, the G100 is. The G100/Astra SPX is a lot better performer than the Astra/Astra SP is. 4250 thrust vs. 3750 on the Astra. The G150 is kind of a whole new creature and has a lot better performance and avionics than the G100 does. It seems that they fixed a few of problems with the Astra/G100 with the G150. All in all, it seems like a nice airplane. It has the same range as a GII does.