From my experience, heat pumps are not a good choice in Pittsburgh. We had a Trane heat pump installed in 1988, when Duquesne Light offered discounts (turns out they just started the second Beaver Valley nuclear plant and had a glut of electricity). Duquesne light required that in order to get the electricity discounts the unit had to be adjusted to only switch to the gas furnace (in this part of the country many people have gas, even oil, furnaces with heat pumps rather than the electric elements) when it was about 40 degrees F. Our heat pump could not keep up when it was that cold and ran constantly and noisily, with almost a screaming sound of "help me, help me!". If it was a cold sunny day, it also had a hard time "making up it's mind" between the head pump and gas furnace so we heard all the mechanical switching around. When we had the furnace replaced 5 years ago the technician removed the "fossil fuel kit" and made the heat pump into a regular air conditioner with a gas furnace.
When weather was mildly cold the heat pump worked well. They don't heat as intensely as gas furnaces, which is less warm but I think this can be a benefit for seniors, as they do not dry out skin. This helped when my father was with us, as he was disabled and skin care was an issue. I would think that in a senior center or nursing home, heat pumps would be safer than radiators.
Oh, yes, the Trane did create quite a scene when it defrosted itself, the cloud it made looked like someone you would see in an 80s music video. Made some "alien spaceship" noises too.
Since I talked my mother into buying the heat pump I heard all about it when we started hearing all the noise it made - It's all my fault!
Regarding those Zone Line units in motels, I think Andy Rooney needs to do a segment about them. Even in very expensive hotels, those unit aim the conditioned air right up into the curtains and such units are not quiet. It would not surprise me at all if Donald Trump's hotels had Zone Line units.