I'm super excited about it. I really like the 27mm fov, but I wanted something for some rainy nights in Tokyo/Kyoto/any city really. The Fuji was "only" f2.8, and the newer WR version was more than I wanted to pay for an aperture that I considered a compromise.
I had pretty much decided I would have to go for a 23mm 1.4 instead, and was looking at the Sigma, but it isn't really weather sealed. Then just as I was about to pull the trigger, Viltrox dropped the 27mm.
It's everything I want in a lens - 27mm, fast, weather sealed, AND it "suffers" with a pretty obvious vignette wide open, which I actually love.
I'll definitely be grabbing one.