Hi mykeljm,
Other than the comments earlier in this topic … you can read more about Katy Wholesale in post #2 here and the rest of the topic.
As you mentioned … ebay reviews say nothing about the quality or value of the mattress and are more about the “deal” that people believe they got and that they were shipped what they ordered. There is more about mattress reviews in post #13 here.
They certainly wouldn’t be my first choice.
Phoenix