Review title is My Husband Loves His New Shaver [SEP] It only took my husband 3 or 4 days to get used to the Phillips Norelco 7140 even though the directions suggested it would take 21 days.  The shave is quick and close with no nicks.  The only drawback is that the battery charge only lasts 2 weeks.  The directions said the battery would hold a charge for 30 hours.  I'm sure my husband isn't using it 30 hours every two weeks.