I've been playing my Falbo 8 for over a year, and really love the extra low range. I still love my 6 string guitars, but found my 7 doesn't really serve much purpose anymore.
Naturally, I want more absurdly low notes, and Rondo has a huge selection of ridiculous instruments to meet those needs. I was initially looking at a 25.5-28.625" 9 string, but I think the 27-30" 10 string makes more sense. It's different enough from my 8 to justify owning, and with a nut over 3" wide, it seems like a logical place to end this ridiculous quest for low notes.