the Roadster handbook is approx 100 pages and covers maintenance and such. It does not contain exploded views so we will have to wait for such when it comes to the Roadster.
since the Roadster is quite similar ot the Rocket of earlier years I usually use the Service Manual that you can get from this link.
However the Roadster handbook do have some news and differences, so it is probably a good idea to use this as a reference for oil change and such for us Roadster owners.