Seemingly made in defiance of the moe-lolicon phase anime has been going through the last several years, Ladies Versus Butlers is loaded with over-the-top faptastic service tailored mostly towards fans of plus sized girls.
Ecchi isn’t for everyone. It truly does require a different mentality. Sure, there are a few ecchi series out there that work as comedy, and a few others that even work as storytellers. But for most ecchi series, the “plot” is really a thinly veiled mechanism for the writer to manipulate things in such a way that it sets up his next cheesecake display.
Shukufuku no Campanella did something pretty interesting with their specials- they went the CG route. As far as I know, they are the first and only ecchi series to use CG for their BD fanservice extras.
Similar to another AIC project, R-15, Shukufuku no Campanella has above average art by ecchi standards, quality nude fanservice, and some inspired creative energy in the writing. During a time when ecchi was exploding in popularity, it should have been a hit.