Dialogue heavy stories ok?

This blog is a question for authors and readers alike to answer. Are dialogue heavy stories okay in your eyes if they're written properly? Or does the heavy amount of dialogue ruin the story? I'm asking this because the story i'm in the process of writing is very dialogue intensive in the early parts of the story and I had someone read the beginning of said story and they said there was too much dialogue but they also pointed out that the dialogue in itself was very well written and it just needed some more besides the dialogue. I hadn't really thought about this much until it was pointed out to me but it does make for an interesting topic of discussion.