Sounds right to me

Of course there are different reasons to write, but if you’re interested in getting something published in the commercial marketplace, the only opinion that matters is that of the person who can either sell it (the agent) or buy it (the editor). My advice these days is not to share your work-in-progress with more than two or maybe three people whose opinions you trust and respect, and ideally have some experience in the very delicate art of offering artistic criticism.

-Matthew Gallaway, "Five writers explain how they got, kept and fired agents."