I'm going to side with Tara on this one. What I got from both of them was that Guy was saying you should present your blog as your product, Tara says present it as your passion.
Gotta go with passion everytime. In fact I left a similar post on BMA back in December, and here was my top tip for having a successful blog:
1 – Write about something that you are passionate about. This is key. Passion can’t be faked, and visitors to your blog won’t come back if you try. But if you are passionate, and effective at communicating that passion to your readers, they’ll love you for it.
I don't want to hear about your product, I want to hear about your passion.