This is mine 2nd philips trimmer, I found this very good and durable. I had used the philips trimmer before also and I remember I used that one roughly and approx upto 4 yrs without any problem then again I bought this one few days back and this one is also too good and positive things in this model ( Series 3000 ) is we only have to put in charge for 1hr only and we can use it for 4 to 5 times after just charging it to for 1hr. There is caution mentioned in manual that this series trimmer would not to be charge for more than 1hr and this is good thing also because I have seen many trimmer which we have to put in charge for more than 5hrs