Got off the fence and bought EUIV because of this DLC... Spent well over 100 hours working my way up from Pictish tribe to a merchant republic spanning all of Britannia, Iceland, bits of France, Greece, Italy, Sweeden... anyway, very excited to take my 1.4 million prestige game into the next phase only to crash the first time I tried an export and once successfully completed, to be greeted with a notice that the exported game would not function as a mod in EUIV as the current version was not supported.
So, I cannot recomend this, as much as I would love to. The idea of being able to start EUIV from the end of your previously altered version of history was very alluring to me, and I had hoped at some point to see a new version of Victoria, and export tools for that and the latest HOI, allowing for a narrative of your empire spanning 1500+ years.
Do I still look forward to spending time in EUIV? Sure, but I am extremely disappointed in this DLC at the moment. Reaching the end of around 150 hours of play time to be greeted with a runtime error and a version incompatibilty was anti-climatic to say the very least.
I am giving this a negative rating, with the hope that this DLC can reach its full potential at some point.
Unless and until you can verify this DLC is working however, stear clear.