The only interesting character in this complete series is Mr. X. The repetition of words and insistence to use them, made the reading tedious. Even if the plots weren't ridiculous, everything else was.
Of course I chose it for a light reading with a lot of sexiness. There was sexiness, I can't deny that but overall it was just a meh read. However the sole exception was Mr. X. where we read at the novella included in the series, and oh yeah, I'd have loved to read more about him and how he became who he is.
Even so, Mr. X. himself was a victim of the authors lack of variable vocabulary. Just googling for synonyms for "Slurp": belt (down), drink, gulp, guzzle, hoist, imbibe, knock back, pound (down), quaff, sip, slug (down), sup, swig, swill, toss (down or off)
The google search also gave results of words related to slurp: lap, lick, suck, consume, down, ingurgitate, kill, mouth (down), put away.
Google such a magical instrument, such a tool to enrich someone's vocabulary. And that comes from a person who's mother tongue is not English. Well would you look at that?