Within the first 3 months of purchase we absolutely felt we had made a great purchase. Then we suddenly experienced fluctuations in the operation of the vacuum cleaner as it was switched on and off during cleaning. We contacted Nesquare and exchanged emails and the new part was dispatched with no problems. After installation, the vacuum cleaner still didn't work as it did in the first three months. Without thinking twice, Nesquare sent a brand new device that we have been using for several months without any problems. We think both the vacuum and the customer service we received were excellent. Nesquare never hesitated to solve our problem to our satisfaction. Communication was excellent, customer service was top notch and we feel we have received a product that we are completely satisfied with. This is definitely a company that cares about their products and the people who buy them and will go the extra mile to make sure you are a happy customer.