As the name suggests it is a "volume Tyler", no curling iron. In my over-shoulder-length hair, the device creates a beautifully smooth, slightly inward on the hair ends (or the outside - depending on your mood) curved result. The hair structure feels good and shines impressively. My tip for business trips - before too long struggling with the small Hotelföhns, rather blow dry quickly and then bring the volume Tyler in shape. Or quickly to freshen the hairstyle.
However, be sure to use a heat protection and do not let the iron too long hair. In stage two it gets too hot for my taste, at level one, unfortunately, is not warm enough. So I use it rather short (with a heat protection spray) on the higher level, as for too long on the lower, because the latter is harmful for the hair at the end (claiming my hairdresser :))
