What is the downside of Dropbox?

Could you elaborate on the potential drawbacks of using Dropbox for file storage and sharing? Are there any concerns related to security, privacy, or the potential for data breaches? Additionally, are there any limitations in terms of storage capacity, file size restrictions, or compatibility issues that users should be aware of? Lastly, are there any costs associated with Dropbox that could be considered a downside for individuals or businesses looking to utilize the service?