I have not found measurements useful in regard to how well a piece of equipment will reproduce music in my system. What I mean by that is it will not tell me how wide or deep the soundstage will be, how much definition I’ll get with individual instruments within that soundstage or even how realistic human voices & instruments will be reproduced. That stated, they are not absolutely useless. Some measurements can give me an idea of what equipment should mate up well. Examples of that are; phono preamp gain to find a phono preamp that mates up well with low output MC’s / Speaker sensitivity & ohm rating to help determine what amp(s) are required to power them well.
All the best
All the best