Broke after driving about 20 fasteners, the last being a #10 2 1/2” Simpson strong tie screw. Difficult to keep the bit holder aligned with the head of the screw, while driving the bit holder wants to straighten up. Failure occurred inside the pivot-complete loss of torque transfer. However, both can provide access in tight quarters as well as this in certain situations and maybe that’s worth the cost even if it breaks.

It is very helpful in tight spots. It makes some jobs a little bit easier!

bought this to get into some tough spaces it worked well, but it broke inside the pivot the second time I used it with my low end impact driver. It's still together, but there is an obvious chunk of metal missing from the other collar of the pivot and the pivot now spins back and forth before engaging about a quarter of an inch. It will probably explode if I use it again.

Bought yesterday. Can not get the bit out to put a different size bit in. Very frustrating! Now I have to go back to the store to have them help me.