I like that it allows me to access my work information from anywhere at anytime without having to worry about losing or misplacing hard copies of documents which are stored locally via OneDrive for Business (1TB limit).
It has been easy to set up so far but some features could be improved such as notifications when someone replies directly within your inbox rather than through a separate thread/email conversation window. The ability to store large amounts of data online is great for business purposes as well as personal use.