I've already had to unravel this little scarf quite a few times. In fact, unravelling and then trying to find how to 'catch' the loops for each stitch is also hard; practice makes perfect :D
I've been trying to sort out the 'edge stitch' so it doesn't get that odd looking loop at the end.
After the unravelling I've started to tighten the tension of that stitch - curiously the one at the other end doesn't look too bad.
Here's my other post on brioche.