How to have a more reliable Volumio Experience using Raspberry Pi

I used the power supply that came with it - this was through buyapi.ca. It is a 3A power supply. Normally one would think that’s more than sufficient, but I’ve heard complaints about the reliability of Pi power supplies - curious how others determine that the power supply is reliant enough - is it just a matter of having enough amps (capacity) or is there a reliability metric I ought to check?
-Hugh