Review (4/5): Actually I kind of like it.
I don't know what made me buy this but somehow I came across it and was curious to try one. I just finished my first stick which lasted over a week. Every day I would chop off the ~1cm part I used. It probably lasted about 10 days. You might be able to use the same part multiple times, I just didn't want to. I actually noticed it somehow whitened my teeth. The taste isnt good but I got used to it after 2 days. I still used a normal toothbrush as well, but I was curious to try this.
I wouldn't replace my normal electric toothbrush/toothpaste/flossing for just this, but I use this along with the rest.
I might buy another 5 pack when this one is gone, but 4 more should last me a few months.