Absolutely use Authorship. There are many reasons why this is a good idea and rather than list them here. I will refer to an excellent blog post I read last month at Copyblogger.
10 Reasons Writers Should Claim Their Google Authorship Markup | Copyblogger
Make sure when linking to your G+ profile you use the rel=author tag and you list yourself as a contributor to the website you are posting to.
I post frequently on several blogs and have seen my click through rate increase as well as my rank rise.
I have placed all of my local clients on Authorship and in some industries their prominence on page one stands out because of that little photo. As you post more content in a particular industry (e.g. plumbing) Google and viewers see you as an authority in your industry.
Plus, my clients love seeing their face next to their content.
His Authorship is connected to his Google+ Local page.