Overall it works fine, but with large grapefruit (such as Texas Ruby Red) the attachment is too small, and juice falls from the fruit missing the  strainer basket.
Also with the large Texan grapefruit it is easy to dislodge the strainer basket when rotating the fruit around the cone.
Would request two improvements.
1. Bigger attachment, that is extending outwards from back.
2. Better fixity of the strainer basket.
The cone fin edges have changed colour.  Hope the citrus acid doesn't have an effect on the plastic properties.