Lifeline's fundamentals are superb, and I see no significant downside potential. I'd continue to buy on any significant dips.
Lifeline refers to itself as the leading provider of personal [emergency] response services in the United States and Canada. Is there a company on earth with more subscribers? Lifeline should call itself the world leader in personal emergency response services.
I wish the company had kept its previous Web site design, which was far more functional and professional looking (see Lifeline Canada). Bear in mind that the primary Internet audience is not the end-user, but rather a younger relative or agency.