I am having an issue with the quality of the knobs that I purchased. After I installed the knobs in my kitchen, two of them spontaneously broke.
They were not be used at the time that they broke. The knobs would break in half and then fall onto the surface below. In one case the broken knob fell onto my kitchen counter top and left shards of glass on the surface.
Thankfully I was able to clean up the mess before anyone was hurt by the broken glass. Their customer service is unwilling to stand behind the quality of their product and they are unwilling to replace the defective knobs.