I use it extensively for PPro, AE and FCPX + the video and audio library.
Currently uploading video for client to look at in the morning on the Video Collaboration part.
For another job that I am closing over the weekend, I downloaded over a 100 video files + 20 music-tracks, and AE logo animations.
And, when I get around to it I will finish building my Portfolio site on it.
Adding, that I can within PPro browse the library, select, and clip, audio file, template will be loaded straight into my project.
Although there are many “would-like-to-have-features” missing, I could not see my business function without it.
Hope that this helps.