I have severe back issues and had all but given up trying to vacuum, so I thought I would give the LG CordZero a try to avoid having to hire someone every time I needed to vacuum.  I am so happy with it!  It is lightweight,  does not pain me to use, and does the job.  In particular, it is great on wood floors, gets along edges, in corners, and under furniture better than most vacuums.  Both the Power Mop and the Universal Nozzle work great.   I can highly recommend the CordZero for anyone who is getting up there in age and needs a vacuum that is "user-friendly" and "pain free".