I absolutely love this hairspray! It's not super strong so my hair doesn't get stiff but still holds down flyaways. The best part is the smell! Sometimes I'll spray it in my hair just to smell good and I always get compliments.
I received this as a sample a long while back and I kept the bottle so I filled it up and put it in my purse, and I still have a bunch left. I say that if you use hairspray every day it should last you about 6 months to maybe even a year depending on how much you use. If you're on the fence about this product (or any other products from Number 4) I say just get it. You won't regret it.