I don't usually do graphic novels which means that I may be a rather incompetent critic of these works.
The Contract With God Trilogy is really more a Dropsy Avenue Trilogy, relating the history and the stories of a fictitious but quite realistic Street, more specifically of one house in the Bronx. The pictures are charmingly drawn and at their best convey the characters' innermost feelings.
Yet, the stories are often a bit shallow and tend to wallow in clichees. It may be because I am not used to graphical novels, and I must admit that I flew over many of the pages much quicker than would have been good - but to me, this novel is pleasing to read but not a real thought-provoker.
Certainly a nice gift for people with a connection to the Bronx, but not something I woould recommend for average Europeans.