A very finicky lens to focus wide open, the focus zone seems to be incredibly short. No firm click on either aperture or focusing ring either.
But at 33€ (delivered) for a 50mm f:2.4 equivalent it's a pretty good proposition. It obliterates backgrounds quite nicely and the color rendition is faithful.
It "haloes" very easily in daylight, but not for this shot which was taken indoor with modified accessory flash.