I have to agree about the styling. I don't like the front end. Remove the first 20% of the fairing and replace it with the twin headlight front end of the Z1000SX and Kawasaki would have, IMHO, a winner.
The screen on the SE and SE+ is taller than that on the straight SX. The standard SX screen is closer to the K1300S screen and, I think, slightly better looking.
I assume Matt that your demo ride included the occasional opportunity to, at least partially, give it its head on some … er … private road. If you did, then there's no way a boxer will light your fire after that. There's something about almost 200bhp that really cant be matched by any BMW twin!