The game is still barebones and buggy. I preordered the royal edition but I have played a total of 16 hours, mostly during the first days.
I made several bug reports on day 1 which were acknowledged by Paradox but not fixed yet although fixing them takes about 5 minutes... For instance, the Estonian culture doesn't have longships in either start dates nor does it even have access to them because k_Estonia has been added to the wrong geographical region. Anyone even remotely familiar with the CK era Estonian culture won't play them if they can't raid. It feels like playing the Danes and not being able to raid, just immersion-breaking.