Best window type Aircon - Carrier?

[_Cathy_]

I used to think it was Carrier but the last one I bought around 2003 is starting to conk out already so I guess their quality has declined over the years. Our other Carrier ago bought around 1992 is working better than the 2003 Carrier. We have our ACs cleaned every year and we only use it often during summer.

I checked out some ACs last week and I have decided that may next purchase will be National Panasonic. I've heard a lot of good feedback about it.