It is free to use it has many features like contact manager etc which makes our work easier on daily basis. The interface may be bit difficult for newbies but that's only because you will get used to it after sometime. I am using this service since last 3 years now everything is working fine no issues at all. So far i haven't found anything negative about my experience with them so would rate 5 stars. Try it once if its free then why not? If nothing else try it and give your feedback regarding the same. Its very helpful to manage contacts from anywhere and anytime.