I think this product is very effective and worth the investment. I call it an investment because I think it is a bit pricey. I don't think the 'features' are anything that would make or break the product.
Teeth have never felt so clean. Everyone in the family has their own brush. The 2 minutes takes a little getting used to but once you're familiar, it's perfect. Added the flosser because of the brush. Tell people about the products but not the website.
Pros: cleanliness
Cons: wild ride until you are familiar, don't hear 30 second notice
I wasn't use to it at first. But know it's second nature. I love the 30 second intervals, and 2 minutes shut off. My teeth fell cleaner and my gums feel better.