It's a bit ironic that most full-frame cameras jettison the on-camera flash and it's considered an "unprofessional" feature, but the HDC series retains it. Even if you don't use it for serious work, it's nice to have in an emergency.
In addition to traditional Program, Aperture- and Shutter-priority and Manual exposure modes, Hasselblad offers a variable-Program mode (Pv); this mode takes into account the current focal length to, for example, prevent situations where a too-slow shutter speed might cause shake.
I really like how much recoverable highlight detail you can get with the camera.
(Original in inset. Adjusted with Lightroom. Keep in mind that Hasselblad has its own raw-editing software, Phocus, which likely delivers better results, and that these won't look as good viewed on the typical sRGB display.)