Well, saw jetfire today at target and picked him up... robot mode is kinda fun, just because he's hunched over and doesn't pose like traditional robots (you know, tall, chest out and uber heroic). Jet mode is kibbletastic. There's almost no way to pose him where there isn't some bit of arm or leg sticking out.
I maintain that if they had done away with the voice box and batteries they could have hid a great deal of him in the shell.
Have yet to try out the combiner mode.