I have a commercial cleaning company so we are always trying new vacuums and we have this Prolux backpack Bought for this place that takes less than an hour to vacuum. This vacuum only lasted two cleanings, so performance was pretty disappointing. My consumer vacuums last 10 times longer. Bad product is one thing, bad customer service is another. They were quick to respond to emails, so that's a plus, but the emails were short and to the point, and it was pretty obvious that they didn't intend…