I've been using Skype for over a year i believe and i have to say, it's a very good program. On land-line and non-land-line connections(using SkypeOut), the quality is better than the quality that i get from my regular Phone. When i talk to another Skype user through Skype, the sound quality is crystal clear. My mom talked to her friend in Bulgaria(we're currently living in California) yesterday and the sound was really incredible.