I put the door closer to my a wooden garden door. For about 10 euros, which I had paid a very neat processed product. Let's see how long it keeps the weather was, but I'm in good spirits. My goal was to prevent a gust of wind slams the door and thereby shattered my stop. Target fully met, the pneumatic cushioning effect after about 2/3 of the closing line and slows down the door neatly from. The last third is then leisurely. If I had a little more closer to the mounted tension force would probably be enough to fully pull the lock the door. Noise through the pneumatic there are in my outdoor use but irrelevant. The leverage effect of the door opening force required is considered to be low. Before I had mounted the door closer, I had a strong magnet to stop the open door fitted me so that this also remains open in the open state. Fortunately, this works even with the mounted door closers. To the integrated locking mechanism I can not say anything because I do not use it, I have the magnets. So far I'm very pleased with the product, especially in the low price. If that thing out there maybe holds 5 years, then I'll buy just the part again and Swap the cylinder ... it has fully paid off.