Review title is Creates the best curls ever [SEP] LOVE this diffuser.  Due to an autoimmune disease flare, my hair has been falling out like crazy.  This diffuser helps to give me the BEST curls so that you can't see how thin my hair has become.  I also really like that it is collapsible as its a real space saver.  I would recommend this to anyone with naturally curly/wavy hair and I would buy it again.  Oh I have not had the issue with it collapsing while using it but I could see that happening and it also not being a big deal because its so great.  I have also only tried it on one dryer and it fit like a glove!