I have fine, about the shoulder reaching hair and always had problems with the round brush and hair dryer. with the active brush I now have a free hand and can place the strands over it and blow-around nice. the negative reviews I can understand, but which are probably due to the handling. the brush is active ie not intended to blow-dry, but the style: after washing föhnschaum purely and with the normal hair almost completely blow-dry (ev overhead.). then I put the top coat with a clip on and take me with the brush active times the lower hair strand by strand before until it is completely dry. repeatedly pull away from the head and screw it again. then comes the rest of it. which lasts then no longer long and the result is really good. the hair is beautiful shiny and plump. The only downer is the lack of cold setting. otherwise the device is really good, the brush does not get stuck equal when tangled hair times. in the case just unscrew the other way.