20-30 hour was less than I expected. On other comments it sounds like several endings can be seen in one playthrough which makes it easier to see many or all endings.
I have never played Chrono Trigger, but I am currently spending some time playing old classic games. However, some games don’t age well and are mostly appreciated due to nostalgia. How easy is Chrono Trigger to get into for someone without the nostalgia, and is the Steam release worth playing?
I got a bit worried after your first sentence but it sounds like Chrono Trigger should be more than okay.