The screwdriver is solid, makes a very robust impression. The translation selector you have the option of either screws or very powerful to drill at high speed. This works both properly. The slipping clutch has a sufficient number of steps to prevent an accidental "sinking" of the screws in virtually any material. For drilling can be off the slip clutch. The speed can be entered precisely, by the withdrawal, in a sufficient number of steps so that for each application the right speed there. The integrated rechargeable battery lighting I had first considered "unnecessary gimmick," now I am glad drum. It works well and helps especially if you z. B. in cabinets or other dark corners or screws to drill. Also integrated in the battery charge indicator is practical. Very like the battery to charge does not have to be removed from the device. It provides the simple screwdriver with battery in the charger. Loading the machine is pleasantly fast, and yet the battery has a rich household capacity. In addition, I also after months of storage can find no self-discharge. The quick release device is doing its purpose, the working tool (drill bit) does not slip away, and there's nothing to complain about. In continuous use, I had the machine is not yet, but I am confident that you are getting such a put away easily. No full 5 stars only because especially if you stay in "High Speed" -speed at full speed the withdrawal suddenly releases the tool abruptly with an unpleasant creaking noise are thereby (to see through the vents) sparking at the brushes of the motor is produced , But this is neither a loss nor a failure or a security risk (the sparks do not get so out), it sounds just as if here not very wear low on the brakes to be put down (with a hunting tool of course would also be undesirable).