I like that I can send any file type...not only Quicktime movies...but audio files or project files. I'm not limited only to upload video for clients to review, I can get them elements of the projects as well. And I LOVE that we get notifications when a client accesses and downloads or views what we post. Because then you can either remind them when a lot of time has passed when you posted it, or prod them for notes if too much time is passing, and the clients can't lie and say "Oh, i haven't seen it yet."
I like that I don't need to tie it to clients. I don't need to authorize a select few people to "collaborate" with. I have my regular clients, and then I have the occasional one-off clients that I need to send things to...and I don't need to add them to any collaboration list, I just add their email and they can see it. They can also forward the email to other to view.
And I can use it to send my mom and dad a quick video of the kids without posting it to YouTube...give them something to download.
I like that things remain on the server for a specified time of my choosing. Either the default 90 days, or indefinitely. Up to me. As I have clients who consistently need to access a file, who don't download things.
That a client can't send something my way. They need to use Google Drive or WeTransfer. But it's not that big of a deal...not a deal breaker by ANY means.
I'm solving getting video files to clients to watch, and to download and watch, or keep...without needing to post on VIMEO or YOUTUBE and password protect. I can get them not only video files, but data files as well, project files, or music, or pictures.