I used it for the first time yesterday and it was perfect with the Octopus pulley system that fit under my buoy. Makes a big difference pulling weight up. I went for the 10/12mm with the large Octopus pulley as this offered the easiest and smoothest pull.
Visibility of the line at depth was good too.

The line is of very good quality. It's robust and feels good on the hands either via FIM or when pulling the line back up.