I like that you can access your data from anywhere using any device without worrying about the network being slow or having to deal with low speeds at times. You also have multiple options when it comes to choosing where to use their technology, both in US and EU countries. When accessing information stored in different databases (e.g., email) they sometimes need time to sync so this could be an issue especially if you are doing other things while waiting. There is nothing specifically negative about using zadara. It's very user friendly and easy to work with as well. They make managing all of our emails very simple and we don't lose anything.