Good windows, European quality- very heavy, no stolen material, really energy-saving and durable windows. The installers arrived at the appointed time, they had all the tools, they did not have to give or borrow anything. They were placed evenly, well adjusted into the window opening. There are practically no gaps. Along the slopes, too, without any postponement, the master came with all the tools and levels. I did all the work myself, my family and I just accepted the finished product.