I use this set with both the Park Tool TW-1 and TW-2 Torque Wrenches. I haven't noticed any weakness in the sockets or bits when wrenching a part moderately tight, ie. cassette, pedal. For the price, you could perhaps find something cheaper at a big box hardware store, but I got the SBS-1 on sale so price seemed right. If I could change one thing, I wish there was a carrying case for all the sockets and bits so they don't fall out in a tool box. Right now I am using the cardboard box they came in.
I bought this set because it's a good selection of sockets and bits that should cover most of my bike wrenching needs. The holder is pretty useful too.
However I found that the material quality on the bits is really poor. They are made of a really soft metal. One of the torx bits wore off completely during first use with less than 10Nm of torque applied. This also caused partial damage to the threads in my campy skeleton brakes' recessed nuts. Campy's rating for that nut is 15Nm (first use as well).
I'm hesitant to use the other bits with anything more than 5Nm, but the sockets look reliable.