Think you have designed a great logo?
Would it look better in red? Does it really communicate who you are/what you do?
What do people think of it? Honestly, do your customers like your logo?
How would you ever know?
Question every one as they come in?
No, run a survey, show it to them, and just ask them. Then go back and work on it, before sending everything to the printer’s. Simple as that.