Hi....flew a Convair 440 with the PW R2800 water injection, reliable to a tee. Occasionly when switching to "high blower" abover 16000' the clutch may crap out.
Also flew the PBY- Canso water bombers.....PW 1830, reliable but underpowered for the aircraft and its useage....the Super Canso had the Wright R2600's....lots more power but very tempermental and prone to carb icing. Seem to me the PW were more reliable than the Wrights as a general rule.