Two things I loved about this costume:
1. The custom tailoring was SO worth it. It fit like a glove and I didn't have any issues with it pulling at my shoulders like I have had other costumes do.
2. Ease of mobility. The haori has holes under the armpits (that aren't super noticeable in pictures) so that fabric doesn't pull when you move your arms.
Two things that I didn't love about this costume:
1. I went with Cosrea because I was going for screen accuracy, and the photo they have for the Tanjiro listing has a larger square pattern printed on the haori like he has in the show, so I was really excited to have found it. However, the one I have is pretty standard for all of the other Tanjiro costumes I found and has much smaller squares. Not a HUGE let down, because the character is obviously still recognizable, but I do think they should update the listing so that it's accurate to what people recieve.
2. There were a lot of loose threads all over the costume that I had to trim, and the calf wraps were huge on me. Again, not the end of the world - might be useful for anyone ordering in the future to include measurements though, just in case, and it's nothing safety pins can't fix.
All in all, it was really just the minor details that needed a bit of extra work, but I'm mostly satisfied with what I got and will be wearing it for a while at least! The Demon Slayer uniform itself is really the stand out - it's comfortable, the material is great, and it's just fun to wear period.