I bought a generic version of this from a Chinese maker to save some money. Given that a one-star rating because it barely works, and would just get stuck on my beard and try and pull my hair out. I learned my lesson and bought this just a couple of months later, and the difference is magical. My beard is under control again, and that's entirely thanks to Philips.
The recharge time is pretty long, so you'll want to just plug it in and use, but if you absolutely have to go wireless, plug it in at night and you can shave in the morning. Operating the trimmer is pretty obvious so I'm not going to talk about that, and the design itself feels solid and reliable. I have no complaints whatsoever.