Yes, I've grown it and like it very much and here's more info about it from a Google search and I trust what Linda Sapp then at Tomato Growers Supply said about it said as to the origin,which was Ohio, as you'll see in the link below..
https://www.google.com/search?q=gian...&bih=815&dpr=1
I just checked my 2018 SSE Annual and Bill Minkey is listing it and says from Ohio and said his source was from Glenn Drowns of Sandhill Preservation. So checked Sandhill and yes Glenn is offering it.
Carolyn