Recommendations on Search Investor Data Room Providers

What virtual data room providers does everybody use to ensure that investors have consistent and uniform access to deal information during the fundraise? Any other best practices/tips for maintaining an investor dealsite during the closing process?


Historically I have been a user of Dropbox, but it does not allow easy control of downloading some documents and it also shows a list to everyone of who has been invited. Ultimately, the three features most important to me are: (1) control who has access, ie members cannot invite other members; (2) control visibility of who has access, so nobody outside of me knows who all has been invited; and (3) monitor/control the download of certain documents that may be more commercially sensitive for the seller (eg just adding a watermark is fine)


The professional platforms I've seen all cost an arm and a leg and so I thought I'd poll the Searchfunder community on any reasonably cheap and serviceable options?