I have been using Panasonic.
Current house has 3 units and after 3 years no problem at all.
Old house used Panasonic for many years as well.
In fact just bought another 3 units for my new house renovation.
I find Panasonic after sales service to be good as well. My fan had a problem and thy came within 48 hours.
I used to have Carrier aircon and their after sales was BAs and took nearly a week. Happy that they closed shop.