I will be comparing to Ara a bit since that's my main game as of late, but so far for me, this is my first impressions:
Positive vibes
1. The game is very visually engaging, and the specific cultural nuances behind every building, unit, animation, and element of sound design is phenomenal.
2. The diplomacy is really cool and really interesting in how it was implemented. It feels like I have a ton of ways to interact with Civs and city states from the get go. I have been playing a ton of Ara which has super bare bones diplomacy, and I forgot how much I missed espionage and these detailed diplomacy options.
3. I think the level of profile customization, and the ability to level up individual leaders to get tons of little perks is super cool. I definitely feel way more attached to the leader I have built up and leveled up over time. It by itself pushes me to want to finish games just so I can collect those items.
4. Everything loads extremely fast and the game is surprisingly small in size. Which all seem like really good optimizations for the amount of content and high quality of the graphics.
Negative vibes
1. I know everyone says the UI is awful. That same criticism got lobbed at Ara too, and it took some getting used to there, but it eventually made sense. Definitely as a first impression though, I am very confused navigating the UI for Civ 7. Imo, far more confused than I was when I first started playing Ara. There are so many pictures, icons, numbers, etc all over my screen and I don't know what most of them are. Many times helpful information is hidden behind an icon that I wouldn't know brings me to that page.
2. Readability is a serious struggle. And it's most apparent when I am trying to plan my city. I feel like I have a basic understanding of how the new city building mechanics work, but it was never explained well to me. I can't easily tell what buildings I have across my entire city though, what they are contributing, or why I can build some things in some areas but not in others. Why can't I build the great wall on any owned tile at the edge of my city? The heck? Everything about the city planning just feels awful compared to Ara. Obviously Ara focuses on that though so it feels way better. Ara doesn't have the same cartoon symbolism as Civ 6 with the colored roofs, but it just feels better, looks better, and plays better when it comes to the city building in pretty much every way to Civ 7.
3. Switching back to luxuries just giving very flat bonuses and happiness kind of sucks. I like that I actually think hard about the utility of every resource in Ara when planning what I grab. I get excited for specific resources because of the potential products I can make with them. In Civ 7. I am looking at Silk like "Oh boy! What can I do with this?" Nothing. The answer is nothing. I just expand my city onto it then it gets a passive buff. I did see I can slot some resources into cities. But I am not sure what it did if anything? This is another case of feeling quite spoiled by the gameplay complexity of Ara that they bring to resources, and feeling pretty disappointed with Civ.
4. I forgot how prevalent desyncs were in Civ games, since that's something I feel like I rarely if ever encounter in Ara. That and just general glitchiness. I had multiple friends crash, and I got stuck in a diplomacy screen totally unable to move or exit out. I had to crash the game and reload. Then we had an issue where everyone's turn got stuck on please wait. And we just had to all leave and rejoin. For one reason or another we had to have someone leave and rejoin like 5 times within 30 turns.
5. Speaking of 30 turns. While it feels like there should be less to do than Ara on the micromanagement side (the biggest complaint people normally have about Ara), it sure doesn't feel that way. Between the 4 of us playing in my friend group, it took us like 2 hours to get roughly 30 turns in. And this was despite me having many turns where I was kind of just moving units and hitting end turn because it wasn't clear on what I was supposed to be doing. In many ways it just feels like there is less to do per turn than Ara. But the turns still take longer. Which feels bad. I would be on turn 60-80 at least in an Ara game.
Meh Vibes
1. The game does a very good job of focusing everything on the leaders. In this sense, I barely even noticed when some of the AI were doing weird matchups (Like Napoleon leading Persia or Xerxes leading Aksum) but at the same time, it felt like the actual Civs of other players was rather unimportant. I notice the many interesting civ details when looking at my own Civ. But I feel like a ton of identity was lost for others. I still prefer the old Civ and current Ara system of leaders being tied to Civs and playing one Civ for all of history. That said, I adjusted to Civ faster than I thought I would. It's not so much a deal breaker at this point as much as a mild disappointment.
Ultimately the turns are moving forward. I am definitely enjoying the spectacle of Civ 7. But I wouldn't say I am having "fun" yet.
It feels super mixed to me. Some features are definitely cool, but I feel like I am pretty lost in the sauce right now and there is so much I need to be working towards I don't know about while I am still trying to relearn how to play the early game.
My friends are all Civ megafans, but they were nonstop complaining about a ton of stuff but then had to keep prefacing every complaint with "It's still fun though". I dunno. It felt more like a coping affirmation, they were still playing, but it didn't feel like they were having a ton of fun.
This is by no means a final comprehensive review though. I think Civ 7 and it's UI are awful at onboarding given how much has changed, and we may have a ton more fun when we fully understand the game better. But it's just been a rough early impression. I totally understand why it's sitting at mostly negative right now on steam.