if u follow this thread, alwiz recommended to get daikin/pana..

China brand, depends on luck though..

I would avoid acson and go for daikin or panasonic.

Yes non-inverter will cut off if temperature is set up high. To run non-inverter is to set it low so it stays on as it works to reach the set temperature. Preferably 20 degrees.

With inverter, you should be able to set it at 25 degrees and what happens is when it reaches 25, the AC continues running but with less energy consumption and on a power save mode. It will not work so hard because it is keeping a constant temperature. A bit like cruise control.