Always used Volksparts (including a cambelt & WP) until they did the turbo on my PD140 a few years ago - went in first thing but they started it at 1530 when I rang to check up, rushed the job and left loads of paper towels between the engine and the plastic tray.
Otherwise they have been good but that put me off, seeing as it's a bit of a trek for me to get there as it is.