Go for it! Amazing lessons to learn and places to see. You make friends for life and build relationships with new colleagues that can lead you places you did not know you had the option of going to. Beware though, once you have the bug all you want is to see more.
Take the plunge and realise what so many do not, and that is that teaching opens more doors to more countries than most jobs out there. You have worked hard to qualify, now go reward yourself with a year or more doing something not many have the drive to do. Not only that, be successful at it. When you return home as I did, you are more rounded, more open minded and more employable.
Worldteachers are very helpful and efficient. They know what they are doing and are always there to help, if they can. Should I find myself looking for a new experience it’s where I will look first.