My version of this pattern - pretty close, I'd say! The collar rolls because it isn't blocked at all - I wasn't going to waste any time before wearing it.
It's the first pattern I've ever bought. It's also the first one I've ever found that uses a South African wool, which meant that there was some likelihood I'd be able to match the tension without having to do any maths. In the end I knitted on needles one size smaller; mounting evidence is starting to suggest that I'm a relaxed knitter.... very surprising.
The sleeves are 9 cm longer than the pattern made them. It's a very fast knit, so I was able to sew it together, see that the sleeves were silly, and take it apart again without throwing the whole thing away in shame.
Something important I learned, though: never knit something you're in a hurry to wear. You will have to knit at least one sleeve twice, and you will have to start the left front 3 times.