Review (1/5): Just did not do anything for me
I spent several minutes attempting to clean up some pretty soft plaque material. It really did not do anything. Then, I used my old dental tool, and I did just fine with the low-tech manual method.
Given the very high overall rating for this specific device, I don't think I would have anymore luck with any of the other. I noticed also a strange thing when looking at different products, reviews, and YouTube videos... Strangely enough, it seems the vast majority of these products look exactly the same and must be manufactured by the same manufacturers in China with the same specifications. But, different brands use different price points that may not be entirely justified.
Relative to the other similar to nearly identical products, this one was priced at the low-end. And, I give it credit for that. I wasted less money upfront than I would have with the other ones. But, I suspect the results would be identical.