The Good: Power, split bar attachment, lever design good, universally available pads and brake fluid, easy to bleed.
The Bad: Modulation a little on/off, made of cheap aluminum housing and steel bolts, rear brake howl and suspicious of taper-bore.
These are cheaply made, 'Made in China' brakes with a fragile aluminum housing more at home of cheap window frames. Despite this these brakes really do have enough stopping power even compared with pretty good 2 caliper brakes, however it is very hard to find the point between on and off on the rear especially on 180mm and larger rotors, and the rear brake has a tendency to howl, but one day you change something and it goes away temporarily or permanently. In fact it might be a good idea to have one of these on the front for power and a BB7 on the back. The Taperbore technology whist weight saving seems to be an inadequate size of reservoir which shows itself when you change the pads, the fluid is then pushed higher up the system and the brakes firm up. I was also able to get a much better bleed than factory fairly easily which means they weren't particularly well bled from new. The pad retaining bolts are made of soft steel and have rounded out and I'm worried I won't be able to remove these when I try to use my next (4th) set of pads