I use it for a day job as an Account Executive for a consulting firm. It has been very useful; I've used it to call clients and take calls while also using my computer. When we travel, sometimes the service isn't available so there are times when my client's calls aren't going through. Also, sometimes calls don't go through right away - I hear the ring but there is no dial tone. But those are small issues. I recommend this product if you're looking for a way to make calls from your computer via a softphone or if you need to be able to do that while traveling. It lets me stay productive from home without having to worry about being disconnected or having voicemail problems.