1) I saw that science states clearly that heroine's addition, harm for my body and for others, are lower than the ones of alcohol's, and...

2) that I believe in the validity of the studies, and also in the way they are been conducted so that they are relevant for my personal goal (trying heroine for an individual, rather than to be more relevant on a global/societal perspective), and...

3) I had somebody/someone who highly recommend the experience and explained clearly why (I don't have this desire atm, therefore I never looked into points 1 & 2),

...then yes, I'd probably try heroine if I was interested in such experience. However, I doubt that you would have all the three points I mentioned to check out - reason why is common sense not to try heroine.

However, I would extend the argument to other drugs quite easily: weed, LSD, ecstasy. All of these are great experience in their own and if not done too regularly, very low harm (surely less than many other bad behaviour considered normal in our society), and close to zero addiction. (NB. all of what said imply that you are doing well mentally and not prone to abuse - in which case stay away from any drug, alcohol included.)

But yeah, drugs are not all the same. I clearly stay away from some although I've tried a few - reading and learning about the different compounds helps removing wrong preconceptions given us from society (e.g. ecstasy is an hard drug and drinking alcohol is instead ok).