Review (2/5): fell apart
After 2 months of light use (by my adolescent son) the shaving head spontaneously fell apart. The registration/warranty links on the Philips/Norelco were broken. I was able to get ahold of support thru their chat. Apparently, the heads are 'not under warranty'; however, they are going to send me a one-time replacement. I hope to have better luck with the second.