FanficRecs Review of the dead of Winter.
Was very excited about the idea of a Bleach/HP crossover, the whole thing falls somewhat flat. Toshiro is.. moderately out of character for the whole time, and makes so little effort to blend in to hogwarts that you'd have to think anyone would have been a better choice for the job. This is my big problem with the fic. Toshiro acts so... determined to make sure that he doesn't fit in, when you'd think his sense of duty would at least make him try, considering canonically...he has experience pretending to be a student. Some alternate character interpretations of HP characters bothered me quite a lot.
Ignoring the whole characters issue the fic was well written, with good spelling and grammar. If your ok with alternate character interpretations (using the term very, very, very loosely) then give it a shot.
FanficRecs Good, but...
This fic is good, but I had a few problems with it. I was horrified to see the Moral Event Horizon crossed by a character that is canonically quite a nice person. Not going to spoil it, but yeah. My other main problem with it was the weirdness of Soul Society interfering with the UK, though this is reasonably explained in context.
FanficRecs Excellent
Definitely a great fic. Captures Hitsugaya's character and development beautifully. Now, if only the sequel would update...