Bought this for the extra battery and the extra discount on the site at time of purchase. This Vac is useful for super fast cleanups if one is pressed for time. It does a wonderful pick up of crumbs in the kitchen and particles on  the bathroom floor. No need to waste time to plug the cord into a socket, which makes this a inexpensive and very convenient vac.  Battery lasts several days, as I have not recharged mine in 3 weeks, even after using it for atleast 7-8 minutes every day.