For the money I bought it (around €150 in 2018), it's not worth it. The 40 minutes mentioned in the specifications don't exist, not even in a science fiction scenario. As soon as I fully charge it and use it on the highest setting, it flashes the blue-red light and after about two more minutes, it completely empties and needs to be charged again. The total operating time doesn't exceed 7-8 minutes. Bad choice, for this money someone can definitely get something better. I give it two stars only for its assembly, which is good, its lightweight and user-friendly design, and easy emptying, although the dustbin fills up easily, which is expected for a handheld vacuum.