The ability for quick approval of files, in addition it provides an easy way to track progress through milestones which helps with project management as well! It can be difficult at times when you have multiple people involved or working remotely/offline from one another - therefore making communication more complex than desired.
If you are looking for something that will help facilitate quicker turnaround time between client & designer then this software may work best for your team needs. Project Management, file tracking (including digital assets), overall efficiency increase by utilizing tool like these! We use them daily for our internal design teams who collaborate online via cloud-based applications such as Slack, Zoom etc., allowing us access 24 hours 7 days 365 day year. As mentioned before we utilize tools specifically designed for collaboration but also benefit because they provide additional functionality specific towards designers' workflow requirements e.g.; version control, asset.