It depends on what the company is building. Some things take a long time to launch. With others it's a bad sign if the company takes more than a month or two to launch.
Thank you Paul, I appreciate you taking the time to respond. Your answer is helpful in that now I understand your general perspective, which addresses my question.
My problem is that I purposefully tried to ask a general question with broad applicability, because I think that is respectful of your time and the community. However, what remains unclear are the specifics of how my product and company would be assessed. The devil is always in the details. I don't think it is fair to ask for such personal advice from you, but perhaps you have some advice as to the best way to go about getting good feedback on my company and product? Short of getting into YC, I mean. Should I take Adrian up on his offer if he is still willing (for my own edification, not for this round of applications)? Are there other good ways you know of?
And yes, at some point I will just launch on my own if necessary, but I continue to believe the cost/benefit trade off of getting counsel from experienced mentors is very favorable. So, I want to make sure I am doing everything I can to be successful and in the meantime to be able to demonstrate evidence that I am worth the time/effort/capital of those who are looking for those with potential.