I liked the functionality of the device, especially the power vs weight performance. So much so that I convinced my elderly parents to buy one. Unfortunately, I started to notice significant battery decline after about 9 months. Silly me, I thought it just wasn't being charged enough. So, I left it on the charger all the time. Batter function continued to decline to where it would only run 30-60 seconds at a time. Fortunately, that worked for most of my needs. Then, it just stopped altogether. I've owned probably 200 devices in my life with rechargeable batteries, and this is the worst battery life usage I've ever seen. I probably have used the thing for less than an hour in the entire time I've owned it. I own 2 other Eureka vacuums (corded), but probably won't buy anymore.