I watched all the videos and comparisons of this compressor I could find. I was lucky when Thomann had a sale, so I didn't hesitate and bought it. All enthusiasts mentioned the terrible control knobs, so I ordered vintage NEVE style knobs. Well, it arrived, I opened it, and two knobs immediately fell out because they weren't secure, and when I turned the others, the plastic insides fell apart. So now I have to wait for a shipment of proper knobs with metal insides so I can work properly. It's a matter of 50 euros, including shipping via eBay. And final opinion? I don't understand why the manufacturer didn't fix this, even at a higher price....