My 2 cents to anyone: do the video. It is way better and I think key towards my acceptance. I received a secondary early but had to wait to submit because my LORs were still being processed, so for like 2 weeks I thought about my video and had various ideas of what to do. The day my LORs were received I had not even made an attempt at my video, so I went ahead and spent the next 2 days recording myself and created two versions to submit and I ultimately decided on the one that I felt was rushed, but somewhat original. I mean I spent an embarrassing amount of time thinking about how to do my video and I ultimately sort of winged it and I think I came off more natural.
In the time I had to wait for my LORs to be processed, I watched just about ever video that was available on YouTube and even found a way to view the private listed ones. The quality ranged from impressive to garbage. If you have a crappy camera or are admittedly a poor public speaker then do the write up, but I think then your interview day will not fare well to be honest.
I was accepted back in August and I still look up videos once a week just out of interest lol