Sword Art Online the Movie -Progressive- Aria of a Starless Night Is good but with some problems and of course it's a Light novel adaptation so it was kind of inevitable but for me I would say it's definitely better the rest of the SAO anime (especially better than their first attempt at adapting Progressive in S1) besides certain scenes and episodes like 'Mother's Rosario'
There was original scenes since this movie just covers the first the 1st floor which is of course volume 1 of the Progressive Light novel NOT Manga and 118 pages long to be exact and there's a newly added member to the SAO cast that's never been seen before called Mito which were pretty nice actually I didn't think it was bad until they split off after that to me Mito is just in the way and a character to replace Argo to not have too many characters being the focus even if it was just barley 2 which i find dumb but there's no point complaining over something you can't change, would've liked her to die because now she's gonna 'complicate' even more things in next movie which is going straight to floor 4 which is a terrible thing for anime only people who don't read the LNs.
Speaking of Argo she's basically just erased from this movie despite being a main character for the Progressive series in general, she's reduced to being mentioned once and having a little sneak peak of her at the end of the movie saying 1 line which really sucks though she will have her shine in the next movie.
The dialogue is also trimmed but that's just the usual things you see in Light novel adaptations so there's nothing really helping that, there's others things that might have been cut but it's been more than a year since I first read floor 1 which was back in September last year so i don't remember THAT much.
Some more positives about this movie would be it looks beautiful I dislike the Alicization art style but I don't really have any complaints about the way it looks in this movie, I loved how the eyes looked when they show shock and the voice acting is amazing as always especially Kirito's voice actor, his screams make me feel things. The OST is also great as always loved the new LiSA song, I've been listening to it nonstop since it got revealed back in September.
The boss fight was phenomenal, I didn't expect it to be so good the moment Asuna took off her hood it gave me such a good feeling they did not disappoint at all I love how the swords skill look in the movie and it's nice to see that the weapon system that was briefly mentioned by Kirito isn't just completely erased from existence
I've been waiting to see this movie for over a year so it might have some bias with the way I'm rating it but this movie is actually pretty cool for an SAO adaptation A-1 did good it's probably a 9 or an 8 nice to finally see something about the SAO anime that I can rate high. Though I definitely wouldn't recommend this to first time viewers to be honest for many reasons mainly Mito so just read the Light Novels please :)
This is my first 'review' and it might be the last since i'm not the best at writing up my thoughts