Also, FYI, since someone mentioned Intuit's DMS, they heavily promote only using Intuit Link despite offering the SmartVault integration. Since I believe I am switching to LaCerte, I am either not going to use LInk at all, or only use portions of it. I do not intend to switch my clients to yet something else when I just switched them away from ShareFile--and the DocuSign integration with SmartVault is simply excellent. If I use Intuit Link (which seems nice, but they have no demo), it will be for clients to deliver supporting documents to me, and SmartVault will be for engagement/mandatory forms, efile, final work, etc., as my ultimate DMS.
I used eFileCabinet when it first came out and absolutely hated it. Perhaps it has improved since then, looks like they have changed it, dramatically. The software simply did not work as marketed, and the founder of the company refused to do anything to assist. And it WAS NOT cheap software at the time.