We were a bit skeptical about getting this dyson against the other good ones(I would call them bulkier as compared to the dc44), but since overstock had a free return , we decided to try it. We live in a 1000 sqft apartment and space is always a constrain, so the fact that you can hook this up on a wall was appealing. So after almost a month of using this vaccum, we are very pleased with the purchase. Here are the only points which bothered us initially, but not anymore - 1. The actual time the battery runs - 20 mins(8 minutes in full power) - We certainly felt that 5 mins more on top of 20 would have made a big difference; however we noticed that since it is light and cordless, its easier to move around and we complete almost 90% of the apartment in about 20 mins. Now, since we vacuum about twice a week, there's not much dirt in the apartment and most of the times we finish our apartment in less than 20 mins. I would say that the ease of maneuvering this unit makes up for the less time. 2. The vacuum head is not wide enough - being a small vacuum we were initially feeling that the head being small, we take more time to cover a small area as against the wider head vacuums. However with use we noticed that the weight and the ease of maneuvering the vacuum (and being cordless) is much more efficient that the wider vacuum heads we had before. This is not a concern now. 3. You need to keep the button pressed for the unit to stay on - This was a big pain. But not a big concern after you get used to it. 4. Frequent clean up of the vacuum head - the only thing which still bothers me is that all the hair gets entangled(rolls up on the vacuum brush) in the vacuum brush after every clean. This does mean that I have to clean up the vacuum head brush after every run, but the benefits of the vacuum make up for it. I also think that this is the case with all the vacuums, but most of the vacuums do not make it so easy as dyson to keep your vacuum clean. I do not need to talk all the good things about dyson since they keep up to the reputation. But hopefully the above helps you with the purchase.