I have that and love it. I don't think of it as a tonor though I guess I do use it as one occasionally. Whenever there's a lag between washing and moisturizer I use it to get rid of the tight feeling. I'll give myself a spritz before I start my makeup if I'm feeling particularly dry. And I also use it to settle my makeup down if I've gone too hard on the foundation/powder and look cakey/overdone.
I've also been know to spray it on my hair to settle flyaways. I'm stocking up when it hits the 21 days sale 4/1