I've been using this spray for years and I refuse to ever be without it. I have short, fine, straight hair and I wear a messy, tussled style. I use mousse, gel, pomade or whatever I'm in the mood for, style according to my mood and use this gem to hold my look in place. I can spray, let it dry and still be able to tussle a bit more with my hands if I wish. I finish with a few last serious sprays and it's staying all day! Be mindful: If you spray and immediately try to run fingers or comb/brush through, you'll find your hands and hair goopy and sticky and your hair most likely matted and sticky-weird. Let it dry a bit then go at it if you want to adjust/fix your look.
As I've said, I've been using this forever. I've never had a problem with the product not dispensing from the nozzle or with the nozzle getting gummed up. Perhaps there was a bad batch of cans. Try it regardless of the bad nozzle posts. You have nothing to lose, return it if it's faulty or if it doesn't meet your expectations.
Thank you, Aussie! You never disappoint!