Has anyone here grown the Katanya watermelon? What's your take on it? Also, if you've grown both it and Blacktail Mountain, how did they compare?

I've grown Blacktail Mountain a couple times. Each time it got two small, early watermelons with decent taste. I tried Katanya twice (the first time it didn't sprout; the second time from another seed source I had a crop failure: I don't think it was the variety's fault).