Hi Jake69,
I assume you are the original buyer/owner, then to keep the Honda warranty alive, as it were, I believe you should have it done by an authorised Honda dealer. They come with a 2 year warranty and I personally wouldn't want the risk of Honda having a "get out clause" should anything go wrong big time.

The service book does state you should all services, maintenance, and repairs carried out by a Honda dealer of course and pay their rates

Having a dealer stamp in the service book used to add to the trade-in/potential sale price, when you want to get rid of it.
They are my thoughts only, I will have mine done by the supplying dealer, until my warranty expires. I have a Honda trained mechanic friend who will probably work on mine thereafter.