The design isn't that great. It's basically a tube with wide hips in bot mode. The knees are a pain to assemble correctly, so they can easily become floppy if we don't know what to do (and the instructions are rubbish, IMO). He hasn't really got noticeable thumbs (just stubs) and he can't see past his shoulder poltroons.
The trailer is not interesting for me but if they integrated the jet inside the trailer (perhaps with the cockpit sticking out) it might have made for a more streamlined and interesting land vehicle. For example, something like the "Panthermobile":
View attachment 35476
Also, the fake windows on the botmode chest are rather jarring (reminding me of Fire Convoy a bit).
I agree with everyone here in that it's not worth the money. Takara'sv crossover figures have been rather overpriced and weak-sauce compared to the Hasbro offerings, IMO.