I first watched FMA:B when I was fifteen. I then read the manga immediately after.
Since then I have rewatched it AT LEAST once a year and not enjoyed it any less than the first time.
Seven years later I decided to reread the manga for the second time.

All I can say is seven years ago this was the first and the best manga I ever came across and seven years later it is still the best story with the best character development, life lessons, interesting plot lines and the most well written masterpiece I have ever come across.

Read it, watch it, live it whatever you won't regret it.