We've had ours for a couple of weeks. It has worked incredibly well. My 7th grade daughter just got braces and the orthodontic attachment does a fantastic job of cleaning them. I use it multiple times a day...especially after meals if I'm at home. Great product. Family of 6 all have their own tip they use. Highly recommended.
I am extremely happy with the WP-100!!! All the instructions are clear and concise. The product is easy to use. I keep asking myself, why didn't I purchase this product decades ago?