I had held off purchasing a cordless vacuum cleaner because most of them were higher in price than I wanted to spend. However, when I saw this unit, I decided to try it out. The worst that could happen would be to have to return it. I was pleasantly surprised at the ease of use and power this vacuum has. With 3 power settings and simple clean up after use, I am now hooked. It is light, powerful and has a good battery run time to complete all the rooms in one sweep.I must comment also on the seller's customer service. I had what turned out to be a simple issue with the roller mechanism. When I activated the 24 month warranty, I was contacted immediately confirming the warranty along with an offer of either a spare battery pack or a couple of HEPA filters for free. I was also contacted by a customer support person responding to the roller issue. I am impressed with the prompt response and helpful suggestions offered. I learned that it is important to empty and clean the unit to prevent micro-dust from accumulating in the HEPA filter. I usually empty the dirt collection cup after each use since we have several dogs and a lot of foot traffic through the house. Based on my experience to far, I highly recommend this vacuum cleaner.Update on this vacuum: About a week after this review was written, the roller mechanism stopped working and the vacuum would shut down after about 10 seconds. Contacted customer support and they responded within a day. After documenting the issue, the company very quickly offered to replace the brush head and the unit was delivered in about 5 days as promised. The unit works perfectly as of this review. The customer support I received was timely and issue resolved with very little fuss. For this fact alone, I would purchase again from this company and I am very pleased with the vacuum.