Test with a load at max. output voltage and rated current and measure the ripple and noise with a scope or even a DVM.
If it meets the output current and ripple/noise specs then you've answered your question.
You can make a suitable load from low-voltage incandescent bulbs if you don't have the desired high-wattage resistors laying around.
Contrary to some advice given above, if it works well with the test, it would be a fool's task to fix something that works well.
Don't waste your time and money changing any capacitors when any equipment tested is working properly.