Is upgrading to GS 2017 easier than installing GS for the first time?

We're about to upgrade to GS 2017 and I'm just wondering if our IT team will have a lot to do before SDL Professional Services proceed with the remote installation.

The first time around there were servers to set up, but they already exist for GS 2015 so I'm guessing SDL can often use the same settings. What about the data, do we have to worry about reimporting or long transfers during the GS upgrade? The only component we did not install was MultiTerm Anywhere.