The ease of use and the ability to have all of my contacts in one place. I love that I can see all of my contacts in one place and it is very easy to navigate. I also love that I can send out emails and have all of my contacts in one place. I don't think I have anything that I dislike. I would say that it would be great to be able to see my contacts in the order that I want them to be displayed. I also think it would be great to be able to filter out certain contacts. I am able to get all of my contacts in one place and I am able to send out emails to all of my contacts at once. I am also able to update all of my contacts at once.