The problem with HDR, and why 95% of it looks like shit, is because people are using it to completely destroy the tones of an image.
Instead of using it to bring subtle details into the highlights and shadows of an image (which is what it was designed for), people completely flatten any contrast of light and dark within an image, and it just looks like shit.
I spent a month learning HDR and even more time on the concepts behind it in school, but I rarely use HDR myself.
Place it's being used the most is in QTVR panorama's at the moment, shooting indoors and outdoors at the same time. Can't use flashes/lights, so this makes capturing details possible..........