We stayed in Rarotonga a couple of weeks ago with a standard view, monorail side with a lush garden/rain garden view, RM 1823. It honestly was perfect. No castle direct view, but you are just a few steps from the Great Ceremonial House and the pool, laundry is in the next building, right by the Oasis pool, bus stop is right out front, and on the closer side of the TTC. Our room was SUPER quiet with the patio door shut, and when open you can hear the tranquil music from the entrance. The kids liked the castle and fireworks from the beach/Lava pool anyway.