I only just received this so I can't speak for longevity. But, one thing I thought buyers should know is that it dispenses only 5 oz from the 0.3 L button and only 20 oz from the 1.0 L button. Also, the spout isn't tall enough to fit a one liter bottle under it. To fill a 1 L bottle, you have to swivel the spout and hold the bottle at an angle.Works great but every single dispenser I purchased online did NOT FIT the top of the bottle. So they’re all the same in that way but this one would have been by far the best of all for the price but since it’s made for you to rest a glass or container on the device and you can’t , it’s useless. There’s no way for me to keep in place so I must return . I can keep the other because it doesn’t fall off but it’s not as useful as this one would have been if it even came with an adapter or instructions on how to secure. I’m certain the water bottles delivered are the standard size here in the USA so I don’t understandI cannot upload a photo at the moment, however, I can describe how I implemented this perfect device into my everyday life. I have been in the process of building out a van on a budget. I needed water, yet had no room for a traditional RV kitchen. This device allowed me to physically draw a circle around its' circumference on the top left part of the small-scale floor cabinet built, raised the shelf underneath so the mouth of the 5-gallon water bottle meets the cut hole and engages with the water dispenser perfectly and twists on tightly for a small water bowl or different size glasses. PERFECT FOR MY USE and BUDGET!The convenience of having bottled water and no heavy liftingIt was good long lasting battery lifel easy to use but really noisyWorks great. Love having a place to set my glass. I can rotate it to fill pitchers. Not very loud which is good.