Since someone just asked me about this install on another forum, I revisited this thread 4 year later, and can happily report that this unit has fully lived up to expectations.
It's been super quiet, both indoor and outdoor units are inaudible.
Energy savings are amazing, my power bill went *down*, as this unit reduced demands on the main whole-house, multi-zoned AC system.
Zero equipment failures in that room, and it houses dozens of pieces of gear, from audio to 24/7 on computers, networking gear and satellite distribution systems (which run very hot in 'normal' conditions).
No service problems, just once a year vacuuming and washing of the air filters, that's it.
Highly recommended.