EE are currently not charging for any of their broadband packages. Set-up is relatively straightforward with Fibre broadband and Fibre Max packages simply requiring you to do the set-up yourself after the EE router arrives.
Fibre Max and Full Fibre plans are most likely going to require an Openreach engineer to visit your property before you will be able to use your internet. How long this takes can vary and can take a few weeks so keep this in mind if you're interested in those faster speeds.