do you just judge the colors and crisp factor by emulation pics or actually by real hardware? i had few irem PCBs at home back in days, and they looking quite different in real than on those emulation pix you will find on the net.
as for the crispiness, I know what you mean, but believe me it looks much different on the real deal. it gives that typical arcade smoothed picture.
the pce looks great, out of any question, but compared it has no chance.
beside the real strongness of the arcade lies in the graphic details. there is so much more in the arcade to look at. animations, the van is moving, the dirtiness in the car dump etc.parallax.
and actually i like the irems FM music. not the best, but typically irem moody.