The first attachment I used was the nose hair trimmer. It did absolutely nothing. I was angry, then I looked in the box and found what turned out to be the nose hair trimmer blade. Oops! So look out for that if yours don't work either. Once the blade was in my crazy thicket of nose hair was quickly gone. It worked amazingly well.
The other attachments work just as well. The only thing I don't like is that the base is not waterproof. Only the heads are waterproof. The description says waterproof, so that's why I gave it 4 stars instead of 5. That's 50% misleading to me. The instructions tell you not to get it wet. The picture has water all over the trimmers. That needs to be changed.
Other than that they seem to be very functional and useful. It would. It would be nice to have a remaining charge indicator but these trimmers are great for the money.