We have had MJ for a year now. We were using our cells for long distance calling, well got rid of those expensive cell phones and got prepaid cells to use less frequently and got MJ for our long distance. We still have our landline, but thats for local only and the DSL. MJ has worked well for what we use it for, long distance calls and sometimes as a second line when the landline is in use. I probably wouldn't use it as our only phone. You would need your computer on for the phone to ring or make a call, otherwise it would go to voicemail. Early on we did experience a few times when the call would have a bad connection like a delay or an echo, not so much anymore though.