Well, I wouldn't say its "difficult", but it is tedious.  The review form asks for a lot of details that don't end up in the review posted since a lot of the standard info is not updated.  I suppose they want that stuff to help determine if the review is legit.  

I have experienced a lot of inconsistency on whether there are "enough explicit details".  My last review, still pending, of Anastasia (two thumbs up!!) started with getting rejected because the website ad was wrong - problem was the review form doesn't allow enough space for a really long link.  I found an alternative ad on Eros for here which I used but then it was rejected due to "not enough explicit details".  Well, I though it was pretty thorough and I can tell you it was a lot more infor than I have read in several others.  Seems like there must be different people behind the scenes approving reviews.  Some appear to expect a lot more than others.  

So I rewrote the "juicy details" section with a VERY detailed blow by blow account in extremely detailed fashion.  We'll see if that passes.  If not, then they must haver something against me.