Instruct: Classify the given Amazon review into its appropriate rating category
Query: Works great, but...

We have gone through 4 of these over the past 3 years. The concept and construction of it is great, but the weld at the base of it is very susceptible to cracking and then breaking. If you use it daily (why wouldn’t you?) it will eventually wear out and breaks. At least that is our experience. Its great for travel though as it folds up and fits in the front CPAP case pocket very easily.