Zodiac Heat Pump

Hi All

Just after some opinions on the Zodiac 9M heat pump. I can get one here in Perth for 3k delivered. Trying to get a substitute for solar heating (I will have PV cells covering my roof instead).

Pool I'm getting is small, only 5x3 and 1 to 1.5 deep. Pool will get good sun and I will use a blanket when not swimming.

Keen to hear any ones experience with this or other heat pumps on small pools as to whether they really do work and can greatly extend the swim season (say August to May).

Cheers in advance