Share your experience, who in what compnay bouht the air conditioner. There are so many of them now that you lose yourself with a choice. And if there is – the site. The question is that the same brands can be bought from different companies, but installation and maintenance are different.
Man if you have a company and you need to chose and install many air conditioners, contact with companies which instal and repair air conditioners. They work every day with them and they know wich models are good and wich are not so, for sure. I work with https://www.socool.sg/. Last few years they clean and fill the gas in my air conditioners. I am satified with them.
I consider something a lot of good firms, but somehow it is better to come on recommendations, then you are more courteous. In my case, I just chose the company where to buy radiators, and I got a very good uncle. He gave me the phone numbers of the https://goo.gl/maps/8pTJeoYuAbw air conditioner and equipment manager. I'm happy. It is very important when a specialist knows how to properly advise and explain everything.