Philips is one biggest and older multinational company and it is known for there fine quality of product so that why I buy the Philips trimmer QT-4000 I have to say that I buy Philips QT-4000/15 trimmer is very easy in use i.e very easy to handle everyone can handle easily and yes very effective i.e give good service to every consumer that why we can say that it is value for money and also give 2 year or minimum 1 year warranty.