It's more reliable than the GE I replaced because the switch failed - make strong switch springs it probably more durable. Durable, but those with limited finger function might have trouble turning it without the oversized handle. The top shell is held in place by the bottom shell fairly well - as far as design goes - and a lot better than others that I've had trouble staying in place during normal use. There is an adjustment screw on the bottom collar if you can use it.