I completed it a couple of years ago.
First off - I don't want to say ANYTHING that would be interpreted as suggesting that Missy is not a wonderful person, and a tremendous bassist and teacher. Got that?
My sole "criticism" is - I suspect - inherent in the format. The lesson plan does a pretty good job of covering most of the basics, so if you are new to bass, you'll definitely pick up plenty to make the price well worth the reasonable cost. A lot of it is really quite basic - which I was probably a little past. But a good refresher is always worthwhile.
But I suspect you might find it challenging to establish the type of student/teacher give and take relationship that you'd expect from in-person lessons. First, I found there was a bit of a learning curve in figuring out how to video yourself and submit vids. Then you send it off, and wait (not too long) for a response. You might find that she responds about something different than what you were focussing on - yet you lack the ability to ask an immediate question.
And - this might be me - Missy is so darned nice, or maybe it is common of some teachers, that I felt she was too ready to compliment something I thought was not that great. Does that make sense? I might be unusual as a student, but a general "That was good!" doesn't mean much to me. And while I like to hear about the couple of things I did well, I want - at least as much - to hear about how to fix the things than needed fixing.
I also recall that I found a lot of interesting stuff in reviewing other students' submissions, so watch those. (Good lord - I suppose I ought to check back and see if any of my embarrassing vids are still up there!)
So yeah - it is definitely far "better than nothing." Especially in these times of COVID, or if you live far from a teacher. Attending an in-person camp is better yet, and ongoing lessons better still.