Does not have enough reservoir volume to complete the entire mouth
No, I would not recommend this to a friend.
Response from waterpik.comBy Waterpik, Product Support, January 4, 2018
We appreciate your feedback! Our Countertop models feature a larger reservoir capacity and support a longer period of continuous use. The following link provides further comparison of Cordless vs. Countertop models: https://www.waterpik.com/oral-health/blog/countertop-cordless-best-waterpik/
I bought this a little while ago to replace a much older waterpik which had lasted years. This is easy to use. Really no complaints. My older waterpik was a large model with a larger reservoir. I wish this easy to use, more portable, version had a larger reservoir, but really it works just fine. I recommend it if you're looking for an easy to use, effective water flosser.
Second purchase of the Waterpik as after 5 years I needed a new one. I had been happy with the first and consequently only considered buying another of the same. Deeply cleans in and around the gums and in addition to brushing, the mouth feels thoroughly cleansed.
I like the waterpick because it's does a great job. However, it stopped working after a few months. I did get a replacement very promptly. I am not putting mouthwash in anymore and I hope I will not have the same problem. The instructions say it is ok to use mouthwash, but maybe that caused the problem. Time will tell.
I also own a larger Waterpik with a larger water reservoir and higher speed options. I bought this smaller one for traveling and the fact it takes up a little less space on counter. It's not as easy to use as the other type but Ok for purpose. Only suggest purchasing this type/style if size and price are more important than performance and ease of use.