Those Midea units have absolutely stunning efficiency. Variable capacity inverter compressors are the future of heating and cooling. America is stupidly slow to adapt to the technology. 90% of Asia and Europe have been using inverter driven compressors for the last decade.
My mini split is rated at an insane 38 seer. Nearly 4 times the efficiency of a whole house ac or window unit.
It can move heat in the summer at a COP (coefficient of performance) of 8.79. Thats an effective thermodynamic efficiency 879%.
In the winter I can heat my house when its 5 degrees out at twice the efficiency of any fossil fuel source of heat.
Add in some solar and your fuel is essentially free.