Template or Custom postcard?

[Jonathan Guerrero]

I'm having a hard time deciding wether to use a template postcard from yellowletters or customize it. I don't want to mail something that looks the same as everyone else. I feel I could design it and make my own brand and personal touch to it. 

It will be my first campaign and I'd like to know what others are doing as well, and if it will have a good impact or not to customize it.