Skype really really rox.. The call quality used to suck pretty often, but it now rocks. They charge me to call my buddy Steve in Virginia when I'm feeling to lazy to go hunt down a telephone, so .. that sucks, but it only sucks at a rate of 2 cents per minute.. Not enough people use it, so that sucks. Some people are still stuck on MSN and Yahoo, so you have to open those.. and that sucks. And i'd like to run a consultation service, and charge by the minute, and I haven't figured out how to make that work yet with skype, so that sucks. Additionally, some people have disabled the pencil, and that sucks.
Like all other VoIP's, you can experience "voice lag" in which the sound echoes to both users due to data manipulation.
Unlike text messenger, the received voice message keeps on breaking on my slow internet connection. Nothing I can do on this.