The other plus point for MoR is that J.K. Rowling is not that great at shaping sentences unsupervised. I only continued past HP book four so I could find out how it ended - books 5-7 serve mostly as cautionary examples as to why immunity to editors is not such a great idea in some cases. Possibly I am oversensitive to appalling sentence construction, but then again if I'm reading something it's my own responses I'm most interested in.

JRRT's sentence shaping is way better than JKR's and the English translation of this Russian fanfic is not too bad (allowing for grammatical hiccups) - different to JRRT, but not clearly better.