Decent watch, probably won't watch again, but can recommend.
While it isn't anything truly special, it's a decent version of a "journalist in disguise falls in love" trope. Though the object of affection being a prince allows for resources that almost anyone wouldn't turn down.
There certainly is a lot of production put into the movie to maintain the grand perception of royals, but the best part of the movie is the heart felt Christmas vibe of it.
Unfortunately, this is mostly achieved through the secondary characters and them influencing the royal family.