No, their opinion would not sway me an inch.
Unfortunately, I have never a met a person (including close friends) whose understanding of the world and other people equaled the tremendously nuanced, observant, and socially agile sense of judgment that I and my siblings were socialized into by our subtle and razor-sharp mother.
Most people are not magically born with nuanced and observant senses of judgment; they have to develop it in reaction to their environment and circumstances and to the people close to them.
As someone socialized into this sense of "good" judgment, and as someone who always looks at the glass half-empty, pours out more water, and then looks at it almost completely empty just to further test the situation, I already have my own built-in system of checks-and-balances that has, blessedly, never failed me in all my life.
I would of course run my SO's traits by my mother and siblings, but only because I have confirmed that they have a superior sense of other people and a superb understanding of human behavior that most people sadly do not.
The thought of relying on my friends' judgment literally gives me a chill. Absolutely not!