I am using this trimmer from last 10 months. trimmer is good easy to operate. but after 9 to 10 months its battery got drained too fast also blades become blunt this trimmer is best for only 6 months go with phillips trimmer which having long life. panasonic er417 is not that good trimmer. sometimes my hair got stuck into the blades which annoying me. go for phillips trimmer not any other brands finish of this trimmer is not good. fine hair remain on face. and you have to chargee 12 to 13 hour of charge to get 30 minute backup in 30 minute you should shave 4 to 5 times. varry person to person.but guys go with phillips which is better brand then panasonic.