Spoiler free review!

You already know this game is amazing from all the reviews. It can make or break relationships though so be careful because singleplayer and multiplayer are 2 completely different experiences. Multiplayer is for the mechanics and the fun times with friends while single is for the story, Make sure you know that beforehand.

As for the different parts of the game well here is a more detailed review for whoever is reading :):

Character creator: Very good char creator, you can change many details but I think the creator shines in the class/race department more than the appearance of the character. For appearance I suggest looking up some mods as they can really make things a lot smoother.

Act 1: Very flushed out, the highlight of the game for me and by far the most fun in my opinion. This is where the majority of the decisions regarding companions and alignment take place and it influences the game all throughout. 10/10 story wise and mostly bug free, at least I haven't encountered many and the ones i did encounter weren't really bugs... I suppose you could call them cutscene/event skipping. This means that certain events or cutscenes don't trigger properly or just straight up never show up. This happens only with companion stories though so it doesn't affect the story as a whole but it can be annoying.

Act 2: Right off the bat the atmosphere and location are absolutely amazing. The story here is also top notch and pretty much every nook and cranny is filled with GOOD content, but that applies to all acts. A lot of nuance in how you can approach the different conflicts and plot lines. There are no noticeable bugs either though the previous problem with cutscene skipping persists and you can in fact lose a lot in terms of character development for the companions here. Other than that it is a very easy 10/10 as well.

Act 3: Well things get a bit dicey but with the scale of this act it is understandable. The locations, ambiance and overall feel is as usual, amazing. The story and characters are great, the missions are fun, all things we are used to. However, if you are an explorer like me, the cutscene problem can become very infuriating here. In contrast to the other acts, in this one if you go and explore before completing certain quests you straight up cannot do them anymore because the game things you are progressing and quite literally skips the missions. I know of at least 3 instances where you can no longer start missions or finish them. Some missions can be "resumed" i the sense that the game will continue the mission as if you had started and completed parts of it in the previous area but it is disappointing to see. So yes there are some bugs here and there but honestly I think it still deserves a 9/10 as most of those quests are side content anyway.

To sum up I would give this game a 9.5 out of 10 with the 0.5 being the last act. Very easy to fix i believe with a bit of time and Larian have been very busy working on hotfixex. I get a new one every week. Truly an amazing experience, very captivating story, superbly written characters, flushed out mechanics and good difficulty settings that tether to everyone. Best thing is, it is highly replayable, i have played it 5 times differently (didn't finish all 5 playthroughs) and I can confirm that every time, despite me playing fairly similar builds and making the same decisions, I keep finding new things to get excited about. I 100% recommend and look forward to whatever Larian is going to do next! I didn't think any game would be able to stand up to The Witcher 3 in terms of quality, but this game does and I am very happy that it does.

Important sidenotes:
-It is a turn based game very much like D&D, check out some gameplay if you haven't played like this before as it can be a dealbreaker for many.
-It will take a lot of time to finish without rushing, at least 100+ hours.
-If you like this, try Divinity: Original Sin 2. Also made by Larian but with slightly different mechanics.
-There is no correct way to play this game, everything works so long as you are enjoying yourself.

Hope this helped! :)