Comfort Area (In the US we say "comfort zone")

As usual, it was a common (typical or routine would sound better here) day. I woke up at 5 am, then went to my university. and Finally, I'm working now. But At the this morning I received a call from a company, It´s name is AIA engineering, and they proposed me to that I work with them. 
The wage is most higher than my currently job, as well as and the projects are different of the from what I normally do. That is a challenge, but in my currently company, I have many friends and maybe I can say, this am in my comfort area zone.
My dilemma is deciding in to accept new challenges and know meet new people or stay/remain in the places where I know familiar/comfortable to me.

Thanks for reading. I am waiting for your corrections.