Going through the experience right now for my startup. It needs a _lot_ more clarity of where you are in the process, what's next, etc. There is a lot at stake here and one needs reassurance that he/she is not messing anything up.
Also, modifying the application introduces a long turn-around (the system needs to re-generate the documents). In perspective, a couple of typos cost us 3-4 days in the process.
Side note: signing the paperwork with my trackpad on docusign makes signatures look like a 3-year-old has signed the contracts. It would be great to be able to upload a scanned image of my signature (granted, this is a docusign limitation).