I bought a Frigidaire split system from Pricesmart to replace my overly expensive Mitsubishi system that always had issues and completely crapped out after 4 years.
The Frigidaire was 1/4 the price 4 years ago when I replaced the unit, never had a problem, ever.
You might want to call someone, however as there are now some AC units with computer chips (Samsung, is one) that become problematic due to frequent outages.
Here's contact info for my AC guy and you can ask him about brands and potential complications or ease of use. Good guy. He did the removal of the problem Mitsubishi system, installation on the new Frigidaire one, I have him clean the unit periodically and that about it for that system. He also does repairs and installation on other appliances and if he can't do it, he'll let you know up front and recommend someone who can.
You know you're WAPA bill will be going up with added AC usage!