I've got them on my 800gs and they're great, I've powder coated the brackets black and have them tied into the full beam.
They are pointed quite high and wide to fill in the kerbs as I have an up and down twisty cross country commute year round and I find that the standard lights leave quite dark patches when you tip into corners.
The wiring loom was a bit clunky and I've replaced it with a neater setup getting rid of the separate switch.
I did have the LED marker lights as well but they were a bit disappointing, they looked good but the wiring/soldering failed after 12months, I repaired them then stupidly lost them before I could refit them and at £70+ were a waste. I've since replaced them with some £10 each Bike-It number plate lights.