A lot of things to consider . Obviously , is age of the vehicle . Heat and time are enemies of rubber & plastic .
We recently purchased a 2006 Buick Lacrosse CX 3.8i automatic with 37,000+ miles . Obviously low mileage , but 11 years old .
We may use this car as a road car , when visiting family . Last thing I want is it to pop a hose , out in the middle of no where .
Then there is my age . Every year that goes by , I am less able to work on a car . Especially , out in the middle of no where .
I replaced both radiator hoses , both heater hoses , thermostat and 2both heater elbows .
https://www.youtube.com/watch?v=gbrjMstW32U
The OEM elbows are plastic , I replaced them with metal elbows . From what I read , they are prone to leak / break ( very bad place to use plastic ! ) . Mine seemed to be in pretty good condition .
Now , I hope that the cooling system is in good shape , at least for quite a few years ahead .
Oh , almost forgot , most of the coolant drained when I removed the lower radiator hose . I replaced it with 1 gallon of Dexcool , from Walmart . Maybe I should have flushed the engine & installed a different type of coolant ? If it is good 11 years from now , I suppose it was OK ?
https://www.walmart.com/ip/Zerex-ZXEL1-DEX-COOL-Antifreeze-Coolant-Gallon/149192886#read-more
Best wishes to all ,