Excerpt: Clipper is fantastic. Only reason it is 4 star and not 5 is because the scissors that came with it feel very budget, and don't cut that well. The clippers however were super sharp out the box, and the battery got through 4 boys haircuts right out the box before needing a recharge.
Summary: I purchased this model about 8 years ago (so no doubt it is several versions old). However I have used it for all of me and my sons hair cuts so it is used ever 2 months or so. I have never maintained the clippers in any way and they are going strong.
Summary: Made a change to do the hair cut in one go instead of having to take the clippers apart as in my old ones to get the hair out of the motor area. Only used them once so far but don't envisage any problems.