Second Life: Virtually Real

I heard about second life many years ago. Once I tried to join myself to it but I did not have the knowledge (and time) to do it. Now, I have the opportunity to do it again. In my first task, I went to different places. I went to a zombie land, London and some Islands. I think second Life has advantages and disadvantages. You can interact with others and create stories and other life, but is it good?I mean, from my point of you, it is insane to go to a virtual world and not to be yourself. For me, it is very difficult to be another person. But this is just the beginning of this game. Let's see what I will find in SL.