Interesting. Takes some getting used to, [SEP] I was curious, so these became stocking stuffers this Christmas.  Of course, Santa put one in my stocking as well.  I love the idea behind the design and I've wondered many times why toothbrushes weren't made in a shape like this.  Then I found these, and I thought, "finally!".  But, as cool as they are, it's hard to maneuver in your mouth. The end tip is wide, to accommodate the wrap around bristles, and when I brush (and other family members) the large end tip hits into your back gums when you try to get the back teeth.  Maybe with more use I will be able to handle it better.  But I don't know if that's even possible with the end tip the way it is.  Of note: in the center of the two brush sides is another little brush, for the tops of teeth.  I don't know if it's sufficient in size to get the entire tops of the teeth.  I move the toothbrush around to scrub everywhere well.  I think it's worth the money just to try them, and see if you like them.