First impressions - 7/10
I found it a very enjoyable game for the most part, it could do with some polishing and some options to turn particular features off and there's a few parts of EUIV that I liked better but I also there was also some other things in Imperator that I like more than in EUIV.
Really enjoying the game so far, the graphics are quite nice compared to EUIV and I like the most in the selection of overlays they picked for viewing the map, I think EUIV had a better trade view but hopefully they'll patch that or improve it in an expansion.
Absolutely love that they've launched it with the UI scaling turned on because that is a major quality of life option for me playing on an ultrawide resolution.
I skipped the tutorial and dove straight in because I'm a mad man and enjoy the challenge of having to work things out myself. I'd say it took me about 20 minutes of looking at all of the various windows to work out which ones I needed to focus on for the early part of the game. I think having chosen to start as Albania does mean I'm going to have a relatively slow start but will have less stuff to worry about because there's only the 7 nations around me to really focus on.
Almost immediately started a war within the first year of the game against Legia and Siracia, having Iberia and Atropatene on my side.
The war almost went horribly wrong right off the bat when I got a random event that nuked the morale of my armies, thankfully Iberia acted as a good buffer for the first year of the war to allow me to recover and start laying siege to Legia's territory. By year 3 of the war (approximately 50 minutes playing on speed 3 with a few pauses to think about tactics) things were going really well and Legia called for peace offering the chunk of their region that I had fabricated claim on.
Well chuffed that I won my first war without having done the tutorial!
I like that when you claim a province you get the associated land that is linked to it as part of the region and I like that Aggressive Expansion appears to now be more of an internal thing.
I also like how you've got the people within your nation to keep happy, it's a really good improvement over how they had the 3 groups in EUIV to keep happy as it feels like it has a bit more of a personal touch with them having their families... haven't fully explored how much you can interact with a character's family, hopefully you can use them to force them to act certain ways.
Having done a few battles in the war and going through the peace process (not too dissimilar to EUIV's), I think EUIV did a much better job of displaying how the battles were going when you click on an ongoing battle. I'm also not keen on the little icon that appears when you're about to land in a province where a fight will happen (the one that indicates whether you're likely to have a victory or defeat) and would really like to turn that feature off... I'd rather make a judgement myself on how my forces are going to do by looking at my units and the enemy's units than having a little icon immediately tell me if I'm likely to win/lose a fight.
Edit: I may do a more thorough review after a week of playing.
It's getting slated somewhat on Steam which is surprising. I know they are usually slow burners. but a lot of complaints say there is stuttering every turn and some can't even get fundamental parts of the game to work. Rushed? I don't see how there can be so many serious issues on Day 1.
I was playing for 2 hours on my 3440x1440 ultrawide with everything maxed out and have experienced absolutely no issues with stuttering or anything not working within the game - though I'm playing a bit over towards the east of the map and not in the cluster of hundreds of nations in central Europe.
They released a patch a couple of hours after launch (noticed it installing after I closed the game) so there's obviously some initial bugs that they're aware of and are sorting out.
Not sure why some people are having such major issues when others aren't though.