I bought 4 sets of organics for BB7s for some change more than one set of Avids.
I was hoping they'd be quieter, was led to expect them to have a bit more bite, but not last as long as stock Avids.
Definitely quieter. Happy Days.
Bit less powerful (I did bed them in per instructions, whether it makes a difference or not) which is not an issue, as the Avids had more than enough with one finger.
Not had them long enought to comment on durability. Previous Avids did 7-8000 miles. for c. £5 a set, I'm not especially bothered. Be nice if they did more than 2000, though.
Mostly commuting (year round, some hills, plenty of lights) occasional long road ride, occasional off- road, Welsh Hills, SDW, bridleways, wet, gritty France.