they are AWESOME.
(impo)
REALLLY basic, but they work
i got some on my XtC 4 yrs ago to replace crap OE brakes, and have never had to touch them once.
they have a very unique feel, quite a lot of people dont like it, either on or off braking, harder to modulate apparently(if your a muppet with binary finger muscles)
never overheated mine on 160mm rotors, they get damn hot but never fade or boil.
(including hammering down snowdon, not just pootling around the lanes)
reccomended.
if i could find the money to build a big bike, i would put nines on it, due to the heatproofness
also, very smooth lines, and two part master cylinder, so look very clean on my SS (where they are these days)