I really like this thickening spray.  It adds body and texture without weighing my hair down.  It also adds some heft to individual strands making them look thicker and more voluminous.  I've started layering this spray with a styling spray (Suave) because my hair is really hard to hold and I found that I needed some extra support in order for my finished style to last a couple of days.  The two products work well together and there's no stiffness or crunchiness at all. But you don't have to do this because this spray works well all by itself.  I have a layered long bob (a lob) and I wanted something that would define the layers while adding some heft to my tresses.  This spray gives me incredible body and my hair is light and bouncy and responds really well to styling.  I let my hair air dry overnight and use a curling iron in the a.m. to create beachy waves.  This spray is definitely activated by heat and the volume increases as heat is applied but if you just want texture, you don't have to use heat at all. I really like this spray and its thickening properties and its ability to give my hair loads of swingy body.  It was a good purchase for me.  Amazon has the best price on this product btw.  My local Ulta sells this spray for $16 and I think I paid $10ish on Amazon Prime.  I definitely recommend this spray, especially for fine hair.  If you want more thickness, body and texture, give this product a whirl.