Hello Pete,
My first experience with them was a chip that would not work at max nominal VCC, IIRC 5.25V. It would only work at slightly above 6V. Called them, the guy became apologetic and no, they were unable at that time to ship me parts that worked at nominal. This was also my last experience with them.
That was a quarter century ago and it might be better now. However, with a flash only web site I doubt they'll have a long future. With most of my designs being in production for more than a decade a long future is kind of important.
Don't want to burst the bubble but I seriously doubt they would listen.