We absolutely loved our stay and will definitely be returning.
Positives: the apartment is very spacious, the position is amazing, the views are spectacular, the apartment itself is so nice and makes for a very special holiday.
Room for improvement: the cleaners didn't do a great job getting the place ready for us and the floors were a bit dirty and showing remnants of the previous guests but we spoke to management and they sent cleaners around the next morning. The window coverings don't really block out the light so with the early sunrise I was awake by 5am the first morning but then got an eye mask and slept fine. The air con only really works well in the master bedroom but with the breeze from the water we were all very comfortable. Lastly the apartment doesn't actually have any wifi. Apparently mandurah itself has free wifi but you can't get it inside the apartment or sitting in the courtyard.
Thank you for a wonderful holiday and we look forward to returning.