How Serious of a flaw would this habit be to you?

You meet someone and go for lunch. He/she says, “I like, really was looking forward to, like, meeting you. And, like, now that you’re here I’m like, so glad I called.” Otherwise, the person is attractive, educated and nice. Would this be a deal-breaker for you if you somehow could Know it was permanent? But if you believed you could stop it , what would you say to this person?