Experience with Harmony and AC Units

Guys,

What are your experiences with controlling AC units with the harmony hub?
I wanted to work around @stanvx configuration and add my AC unit into HA but the AC unit doesn’t respond even to Power On/Off commands.

From what I understand the AC remote sends it’s current configuration to the AC unit, not just temperature increase or operation mode for example. That’s why we have to learn so many combinations (mode-temp-fan speed).

I’ve got a Samsung AC unit, bought 3-4 years ago. The Harmony community doesn’t really offer a resolution although many users reported that their AC units don’t respond to the commands sent by the Hub.

https://community.logitech.com/s/feed/0D5310000510PfbCAE

Thoughts?