I'm a little less than halfway through The Power Broker. It's a riveting read, especially as a New Yorker (quite possibly living in housing built by him!). I suppose I haven't quite gotten to the part where Moses goes full corrupt. From what I've read so far, he seemed utterly vicious, sneaky and deceptive, but also ridiculously competent. Anybody who's had to sit in committees and meetings spinning their wheels, hearing excuses on why stuff can't be done, will likely find something appealing about Moses' sheer ability to get shit done. It'll be interesting to see how that opinion gets revised as the book goes on.
One area that appears to have come under attack is Caro's accusation that Moses deliberately lowered the bridge heights: https://www.bloomberg.com/news/articles/2017-07-09/robert-mo...
I found it particularly amusing how Moses—"the best bill drafter in Albany" as Caro dubs him—was able to write bills that gave him far more power than the politicians who passed them expected. Indeed one part where he referenced a niche definition of appropriation in an old 19th century bill felt almost akin to return oriented programming!