I bought this a while back and began finding problems with it right away.
1) The trimmer cannot operate on A/C power alone. This means you can't plug it into the wall and use it. Instead, you have to charge the battery, then unplug it to use it.
2) About 2 weeks after I bought it, the beard trimmer attachment broke. The little tabs that hold it at different lengths snapped off so you can only use it on the shortest setting, and you have to hold the attachment on with your hand so it won't slide off. Clearly, I'm not the only one who this has happened to.
3) The nose trimmer has very dull blades. I don't normally use a nose trimmer nor do I really need one, but I have a cheap one that I got in my Christmas stocking that I've used a few times. Out of curiosity, I tried the attachment that came with this trimmer and was introduced to a new kind of pain. It was pulling at the hairs but not cutting them.
I contacted the a representative at Norelco to see if I they would send me a replacement beard attachment or if I could purchase just that attachment. They directed me to their service centers who wanted $10 for just that attachment. Including shipping, it would have cost me almost what I payed for the whole set.
My advice: pay a little more for something sturdier. That's what I plan on doing.