I've had pretty good luck with them, and have had failures as
well. The problems I've had with broken hinges comes from
using too much CA. One set of instructions I read, said to use
6 or 8 drops of CA on each side of the hinge....which is WAY WAY
too much....it cause failure in a short time.

I still like CA hinges in the .90 size planes and below....but now
I double up on the hinges, only use 3 drops on one side and 2
on the other, and use clear Mono-cote to seal (and strengthen)
the hinge lines. This makes them bullet proof. I also like the tight gaps.