Is it wise to not take an investor’s money if you have a bad feeling about it even though on paper he might be the perfect investor for your start-up?

No, it’s not wise.

Unless … you have options.

I’ve pitched over 150 VCs.  I’ve been a successful founder (2x).  I’ve been a successful VC.

I trust about 15% of VCs.

But … all cash is green.

If you have 2 or more options — yes.  Pick the investor you can trust.  For early stage investing, this probably is the #1 criterion.  Or at least, the #1 reason to pass on someone, if you have options.

But if you have 1 option — suck it up.  Just take the money.  And just try not to give away any control.

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