I am very impress with the quality of the product.
I bought this lens along with its 25mm cousin. I received some extra goodies in the box. Looks like this is a newer version of this lens, because it comes in a nicer box than the 25mm one. The lens is all metal and feels a bit heavy for its small size. The focusing ring is very smooth while the aperture ring has decent resistance, so you cannot accidentally move it. The image has a little glow wide open, but becomes very sharp at f/2.8. The bokeh is smooth, with a little swirl around the edges. The colors are nice and neutral. This is a good lens for portraits and video interviews. Would be nice to have an autofocus version available. There is a lens pouch and a cleaning cloth included in the box.