Willette has always been great anytime I have spoken with her.
There IS consistency, HB supports the units with a flat rate repair for 8 years.
Your unit is off that support list, just like my old 787c - and if it breaks today, it owes me or none of the other owners a nickel...
I understand you paid a lot for the unit, and I have for the ones I have had too - but I understand that at some point we must move on.
Good luck with your next units.