ePhotozine tested the Laowa 15mm FE lens:
A solid manual focus lens, perhaps without the refinement in operation of the top marques, the Laowa 15mm f/2 brings to the table close focusing, quality of results and a unique f/2 aperture. There is huge potential in all of that, plus a price tag that, whilst not insubstantial, bears up well when compared to other available lenses. And that sharpness is exceptional, so Highly Recommended.
And over at Phillip Reeve you can read the interview with the Lens designer. It’s always nice to hear the voice of the man behind the lens.
In the meantime I am trying to use my new Laowa 15mm FE as much as I can. I like the have zero distortion feature because it allows me to frame the image perfectly and to see the results straight in camera without having to correct distortion on my laptop. This is one of my latest shots: