Does NMN actually make you feel different or just change biomarkers?

I keep seeing NMN talked about for NAD+ levels, energy, and longevity, but I really wanna know how noticeable the effects actually are in real life.

For people whove used it for a while, did you genuinely feel any different day to day energy, recovery, focus, etc, or was it more something you only saw reflected in labs and/or biomarkers?

Not expecting some crazy anti-aging effect, just wondering if there’s anything you can actually feel from it.