The lack of polish is usually in the actual usability of the feature set (see yesterday's "polished photoshop clone" where the keyboard shortcuts just don't work)

I think you can use these tools to get something very polished. I have found that a lot of people get "tricked" into thinking that their result is good, but the people making these things and the people with expertise in the domain are often not that close to each other.

It is valuable for a thing to get used to figure out if it's actually any good.

Though the obvious glib thing is a lot of people build these tools and then don't use it.

(No not you, person who decides to reply to this saying 'but _I_ use it')