Great question Cpt. I believe that a definition for a great work is passion and enthusiasm, specially when talking about vLogging.

Even though it sounds way too abstract, some times we can feel that the person is happy doing the video, or is excited about showing something on the video. Quality comes with time through an extensive learning process and equipment upgrades, but none of those will be usefull if there's no passion and enthusiasm involved.

Now, as for quality vs quantity, I always advice new users to focus on quantity without losing to much on quality. A portion of quality will be affected of course, but it's needed to mantain the presence. I wouldn't go full quality if people can't find my content.

Tons of positivity to you and your new company!