good shaver but not worth an upgrade [SEP] i am a year norelco user who also owns a five year old norelco which was the top of norelcos line when purchased in my opinion the new smart touch line that uses the heads is not worth the upgrade i buy new heads once a year which makes my older shaver feel like new the only real reason to upgrade a quadra norelco is if the batteries are failing and there are numerous places now where you can have your dying batteries replaceddo not fall for the latest is always better line