S9 failure is well known to be bad. (on the S9 at least, they were real good on the S1 an S3, things started to be bad with S5).
It's a bit of chance and badluck but they are way less reliable then Avalon product.
So yeah ... i'm all in Avalon now.
Probably nothing to do with the 6 months of "testing" they do, before selling it, price gouged, to some poor schlub. J/S