And.... a capacitor can have a great ESR and its capacitance be way off.... been there done that on multiple occasions.

And, in rare occasions, a capacitor can have its ESR good, and capacitance good, and STILL be bad. Why? leakage towards the working voltage. Been there done that as well, but again its rare.

Ideally you want your ESR as close as 0 as possible, but we are not in an ideal world and even the best of capacitors will still have an ESR slightly above 0. This also varies with capacitance, and the reason being is an ESR meter is a fixed-frequency AC ohm-meter. Adjust the frequency, and the whole table changes drastically.