Hudu is by far the best of Document Management solutions there is. It is customizable, brandable, self hostable, and it is integratable with almost anything easily. I'm in Hudu every day and cannot understate how easy it was to implement into day to day workflows.

I like that it is self hostable, and that I can own my own data. Additionally, I like being able to create my own data types and set expirations on them to get reminders for renewals, etc.

Their documentation engine, integration with Connectwise PSA, and full featured API make this a great product. We leverage the API so perform all sorts of automation and alerting through our ticketing system.