Prestone Flush 'N Fill

Has anybody used a prestone Flush 'N Fill Kit? I have one sitting in front of me as i'm just not sure how well it will hold up. That and I'm not too keen on cutting into coolant hoses in texas summer. If anybody has ever used one, how well do thy hold up? any complaints?

I currently have them installed on 3 cars here in Florida. Never had any problems. The Radiator MUST work here in Orlando. Traffic is horrible. You can sit for over an hour in the daytime.(thank God I work nights) It flushes the system really well. The fitting in the heater hose will outlast the hoses it is installed in, But I usually replace them together.