I am fairly new to using Pheros,but in my opinion,those you know will give you a much better idea of how different ones work,just because you do know them.You can judge the changes and subtle nuances of behavior and attitude far better.
I have a lot of fun,just for instance,cheering people up that I know are having a bad day.Captivation Equation,Lace,Cougar all work for me in that respect.And I love the self-effects too
I did have an unintentional Occo, ummm, reaction,from a friend who was then teased unmercifully by his co-workers,so I toned down the amount used in that environment
That being said,pheros make shopping,and so many other things...fun