Ongoing agonized relationship to Google Books

Love? Hate? Joy? Fury? At one moment, I'm massively frustrated by the frequent sloppiness of the entire Google Books project: no quality control, botched bibliographical data, irrelevant snippet views, missing pages (or volumes...), blurred scans, fingers in scans, oddball editions.  Then, five seconds later, I'm positively *squeeing* in excitement--no doubt scaring the freshmen in the hallway--because something absolutely, incredibly awesome has just popped up.  Like all three volumes of The Romance of Jewish History by the Moss sisters.  OK, granted, only a specialist in nineteenth-century religious fiction is likely to be especially thrilled by this discovery. But it's an extremely rare book (the nearest copy to me is a microform at SUNY Buffalo), it's impossible to get via ILL, and it's one of the very few examples out there of Victorian Anglo-Jewish fiction.  So cool.  (Hmm.  That's probably not what observers would call a refined, intellectual response.)