I buy one of these as a gift for my mother who have be use a B&D; CFV1200 for 8 year without any problem -lrb- even the battery still hold a charge for a 10 minute vacuum -rrb- . anyway , I think the psv1800 would be a leap forward in technology , efficiency and usefulness . possibly it be if it work . the one I purchase have two problem right out-of-the-box : 1 . the on\/off switch do not work at all , it do not even budge ; 2 . the charger base led -lrb- and possibly the charger -rrb- do not work . on another note who know , since the unit can not be switch on . of course , the typical run around with B&D; . it use to be that american company be superior to other . the product be also better . B&D; be definitely a american icon or use to be . how can a company pack a vacuum cleaner without check to see if it work ?! they do put a plastic block device on the switch so it would not switch on accidentally but then how could it if the switch do not even budge ? anyway , on a positive note : Amazon.com do try to help but in this specific case could not . so I be drop Black & Decker from my list of Favs and be push Amazon.com up by another notch . thank goodness there still be good american company in the age when Chevy 's be make off-shore !