Unfortunately, the windshield wipers are not as durable. After a few months the quality was after. The expensive of GM / Opel last about 2-3 years. The Bosch you can throw away after 6-12 months. In the middle of the left, I have streaks and the wiper is right shorter, leaving a portion of the disc. This means that with a sponge you have to go on the side about it every now and then because of the dirt accumulating there.
Maybe I'll go back on the expensive windscreen wipers for Opel because the Bosch not even know what are good in winter and have fallen sharply after a few months.