I am really expressed with the compactness of the flosser and still being able to obtain the same effect. It does require filling the unit more often but that is a small trade off for the bulkiness of the other one.
Bought this about 3 weeks ago and it was a good investment in my dental health. Pretty easy to use and my teeth feel better, cleaner after I use it. Can be messy if you don't use it properly. That is my fault though not the product. Recommend it highly.