If you're on passing through Rarotonga, and prefer to be in the main town of Avarua, Central Motel is well located, and a short walk to the main road and faciities.
I had to alter my arrangements more than once before I arrived, but Malcolm accommodated these changes pretty well. The only failing was not getting the lift back to the airport at the end of my trip, despite checking the day before the time and pickup point (the harbour, not the motel). Fortunately I was able to organise an alternative when his colleague did not show up.
The rooms are simple and functional, appropriate as advertised, and the staff are generally helpful. There are a few mozzies about - not normally an issue, but there was a Zika virus outbreak at the time, so make sure you carry insect repellant (I didn't catch it, but plenty of locals and some travellers had). It may well be over - the Cook Is usually don't have such issues - but check when travelling.