Thank you very much @gwgill!
I intend to use the instrument for anything useful for my design practice, being spot readings, as an aid for device calibration and profiling (hopefully making my Colorhug1 finally usable or putting my iDisplay2 back to working state), producing decent print profiles, helping in photography, etc.
I’d say I’ll cover all the practical uses a Colormunki spectro has, but I’m fine as long as the level of accuracy I get is enough for what I do.
Colour is of course important in my work, but as my clients don’t have accuracy requirements it’s not a critical aspect, so getting a reliable colour workflow and reasonable consistency is enough. It’s not that I have any client who would reject a job if a deltaE is a bit off.
So my main concern is that the device is not b0rked and it works reasonably well, and I feel that the recommendations you just gave me will give me an indication of that. Thanks again.
One last question: I know every hardware ages, but as far as I know a spectro is quite different to a colorimeter (specially the cheap ones with plastic filters). Is there something in a spectro that could indicate aging or breakage so I pay special attention to it?