I've never understood 'just ship it'. You usually only get one shot for people to look at your app. If it's buggy or ugly that's it. They won't try you a second time.

How many times has someone mentioned an app and you say I've already looked at it and it's a piece of junk? Or gotten an email saying we just shipped version 2 and you're really going to like it and you just hit delete?

That's why I personally think you're better off starting slow and getting a small base of customers. Save the press announcements or Product Hunt posting until you've got product market fit and have at least a bit of polish on your project.