Pros and Cons about becoming vegan

I am thinking about making the transition to the vegan lifestyle. However I don't want to make this choice unconsciously or uneducated I've been doing a lot of reading and watching documentaries on my own and I was hoping some vegans, and even non vegans, in this community could comment with their stories. I ask that if you have a strong opinion against one lifestyle choice or the other that we keep the conversation strictly based on personal experience and facts any negativity will not be welcome.