Overall, it is a really good analysis and correctly points out the problems associated with electric toothbrushes.

Regarding the sensors that you are planning to use. I am not sure how viable is to have sensors to be implemented in such a small area. in addition, I am not sure how is the durability of those sensors. It would be great if you could provide some suggestions for the sensors.

As my first suggestion, I can say that there can be a cover added for the head of the toothbrush to protect it from dust and dirt when it is not used. This can be integrated in particular with the idea of the whole family using one handle with different heads. There can be a rack that is closed from the top and the heads enter and sit in it from the bottom. At the time of use, each family member will attach the handle to the personal head from the bottom and use it. This extra rack can be sold as an accessory for the toothbrush.

The second suggestion regarding the con that you mentioned about being bulky and not appropriate for travelling. I think the toothbrush can come with a smaller handle which works with AA batteries in addition to the rechargeable handle. The battery handle is smaller and will be used for travelling. It can be used in places where charging is not possible.

As my final comment, I am not quite sure if one handle is used for the whole family how can the handle know which head is connected to it and keep track of if they have been used for more than 3 months or not.

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Wow. Wonderful. Maybe a little too much toothpaste on the 1'st image, but that's subjective.

Pressure sensor is great - I know I overbrush.

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Kaymie's analysis was thorough.

Improvement suggestions

- I would've like to know how users ranked the problems they encountered with the toothbrush

- It would be great to hear from people who tried to switch to an electric toothbrush but went back to the manual experience.

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Analysis was thoughtful and thorough, with enough background to be informative without being overwhelming. Two improvement suggestions:

- I would have liked to hear more about your sample user (Sarah)'s thoughts. This likely informed the subsequent "Pros and Cons" section, but some quote directly from her would have been great! Maybe her feedback on the improved design?

- I found the layout of the "Pros and Cons" Chart a little confusing, because I expected the components of a given row to be related (i.e. the pro and con of a given component). I think spacing these two lists further apart, in two different columns of text (rather than a table) would have avoided this confusion. But great points!

On the whole, though, really impressed by quality and thoroughness.

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The website design is outstanding. I really like the shaking toothbrush when you bring the mouse to it.

The website looks professional and first time I opened the page I had the idea that I am on the webpage of the toothbrush manufacturer. Very Nice Job!

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Exemplary. Looks very professional. Shaking brush on the landing page is magical.

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Fantastic presentation! Succinct and easy to read, got the point across clearly through the great use of diagrams and lists.

The only suggestion I have is not to put the description of the experience as a hover over the photo -- I want to read the description and see the photo at the same time!

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Website is clean and professional. The clickable citations (e.g. "source 1") are really helpful and an unobtrusive way to provide references. The vibrating picture on the home page was clever, and the connection to "Experience" logical. The captions on the "Experience" page looked great, but I didn't think to hover over at first and missed a lot of the context. Overall, though, a really impressively designed site!

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