I need to replace my larger central ac unit here in Florida. I have been told I need I need a 4 ton minimum 14 seer unit. That said I have gotten some estimates but everyone is recommending different brands and the price difference is all over the place . I currently have a Carrier unit that is 13 years old. Been told everything from Goodman being the new best to Carrier being overpriced and made in Mexico. Not looking for bells and whistles just a good unit that will last for some time if installed by a good technician. Any recommendations?