Good but not a replacement
This brush is definitely not as effective as a traditional bristle toothbrush but it does a decent job. I’ve used it mostly for morning brushing when my teeth don’t need as rigorous of a brush as they do at the end of the day. It’s very comfortable to use and would be excellent for babies and young children or anyone with very sensitive gums.  I hope they start selling replacement heads for it at some point. The silicone is supposed to last a while but it seems wasteful to only be able to by a new device when the time comes to replace the brush head.
Rating: 4 stars