Intermittent cooling, compressor disengages/re-engages too often.
An Air Conditioner compressor clutch that engages and disengages repeatedly is a typical indicator that the system of your vehicle is low on refrigerant.
This won’t solve OP’s problem, but might be informative. Suggest to use a shop with a lot of AC experience for this problem. Don’t allow an inexperienced tech to get their training on your AC system.
George , why are you posting a link to a business when the person who started this did not say where they are or even ask a question .