I had a similar Braun product over 40 years ago, I loved it, but my dentist back then insisted it was 'garbage!' My new dentist sells the Waterpik in her office and supports my using it. I love the 'extra clean' feeling I get using it.
I was surprised when I first purchased the WaterPik how many accessories it had and how different each one is. It's a great piece of equipment and so happy I bought it.
I owned an older model and replaced with a similar newer model. They basically work the same, but the newer model has a smaller water reservoir and so you need to be quick !