like the vacuum, power is good, battery power is weak (20 mins is average)  the power tunnel is  amazing but you are charging and cleaning the filter more than you are actually cleaning your floors.  i had a big issue getting the unit for the price i expected (i bought it and was charged $160 more on black friday), which was a disappointment.  if you can get the vacuum and the filter cleaner all for less than $450 it's a deal.  i am still fighitng them for the purchase price i screen captured and am sending mine back for a refind and buying a competitor model.  disappointing because i have samsung washer/dryer/fridge but they can't seem to get their billing right and it's not worth nearly $700 when i can have 2 competitor vacuums for that price.