Mckinnon advised us to use the Fujitsu quad zone product with 4 ductless units as we have baseboard heaters on the 2nd floor and want a system that is quiet inside the home and outside for us and our neighbours.
So far the inside units and the outside condensing unit are all quiet. We used them for heating during the current cold snap in late May 2013.
The Mckinnon installers did a great job to plan the installation by proactively listening and discussing options for placing the wall units so as to maximize the integration of the outside piping with the exterior of our home and place the outside condensing unit so as to minimize the noise for us and our neighbours.
The installers also proactively asked for feedback during the installation and refined what they had done / plan to do willingly and with positive body language
The installers kept a clean work site and tidied up at the end of both days they took to install everything.