Regardless of whether Suarez should have been found guilty or not (and I don't really know enough to have a view on that).
The investigation was pretty comprehensive and the report goes in to some detail (Google for "suarez report"). Think the fact that Liverpool and Suarez decided against appealing once they'd read it says a lot and from reading bits and pieces and the conclusion it seems a fair result.
Bit surprised at the way Liverpool have handled it as they haven't come out of it looking good.