We evaluated 3 or 4 vendors and they all wound up being so expensive that we built our own. Sharefile seemed like the best but it wasn't quite customizable to what we needed and it was going to take more time to build the workaround than just build our own. The VDR we built has been running solid for a couple of years and does exactly what we needed. Things may have changed since then, but hope this is helpful. Let me know if you'd like details.