Build Intranet Site with Smart Sheet

We require the build of an intranet website. This site will be used in a small amusement / slot arcade (single site) to aid in the coordination of the employees so they can: - record tasks & messages for managers and technicians - being a repository of employee information such as employee contact details, time tables, registering annual leave - provide a means for management to communicate to staff For recording machine breakdowns/repairs i would like an integration with Smart Sheet forms ([login to view URL]) to input data. Mechanics will have a separate log in to view a list of issues that need resolving With regard hosting im not sure which would be more suitable for this intranet. Google Site (i have an app account) or Sharepoint. I am open to suggestions on this point.