Straight androstenone does smell bad to some people. Ammo is well buffered with other pheromones so that the -none really doesn’t stand out. It is also scented with a cologne cover called Game (smells like laundry detergent to me).
I’d suggest starting with one or two sprays and stick with it for a few tries. It may be that you are getting attention but it is more subtle. Women don’t generally rip your clothes off just because you are wearing pheros (although I’ve seen it happen first hand).
Below is a fantastic post started by Jasmin to help us guys figure out when a woman is interested in us. Most of the time it is quite subtle. Something as simple as them actually paying attention to what we are saying.
I hope this helps. I know I had difficulties when I first got started but there are some very wise people on here that can help you out. Good luck!