The F150 rear window slider looks weird on a Heep.The rear cab structure and glass look really out of place. Other than that, not bad lookswise, it's no Canyon though =P
A rollbar would give it a lot more traditional Jeep profile, albeit at the expense of bed space. But let's be real, no one who buys one of these gives one single **** about bed space.
The diesel might be tempting, but given the astronomical pricing, not that tempting, with a 2.8 in the stable.