Has anyone ever used a company called vacuum tube values to purchase vacuum tubes?


Hi. I need to purchase 36 Golden Lion kt88 tubes. It looks like the average cost for that would be about $1,600. I ran across a company called "Vacuum Tube Values" where I can get them a couple hundred bucks cheaper. Has anyone had any experience with this company? I have seen discussion to be careful about buying from a non reputable dealer because you can get less than top-quality tubes?
whataboutbob1
I love the Genalex KT77 tube but I will say when I first discovered them I was buying them wherever it was cheapest and had a lot of early tube failures. I started buying them from Upscale Audio paying a bit more and no more early tube failures.
I've made several purchases from an Ohio-based eBay seller, wpc1896 - - mostly a couple quads of Gold Lion KT88's, but also some smaller signal tubes. I've been happy with each purchase.

Here's a link to his current listing of a quad of KT77's:

https://www.ebay.com/itm/311774831480?hash=item48973a6378:g:7PYAAOSwNSxVeO~s
I am not a shill for Vivatubes.com , but they have always done me well when I have bought matched tubes. 

I've bought some small signal tubes from Vivatubes and the pair was not matched and test measurements were off. The Gm and Ip of a single 12AX7 did not match the stated values.
I know Viva is a popular dealer, but that's my experience.