Apparently you're looking to buy in an area you're not familiar with.
I would advise you to check it for yourself or have a friend do it for you, someone local. You can go to everyblock.com and do some research there or simply google the neighborhood, check out the public shools website, the local police crime reports, etc....
I would imagine everyone who has a home for sale in your area of Chicago came to Truila and voted for the community in a manner best suiting their interests. A creative use of this social power would be to allow these same citizens to vote on the Value Guesstimates also.
Folks approaching a decision point in their lives need to access reliable and timely data with a true chain of accountability. Failing to seek or accept access to such data is like cutting a tree down with a butter knife. You can nick the bark, but eventually, one needs to realize the right tools are needed to get the job done in a manner most beneficial to the home buyer or seller. Resisting the influence of public opinion and responding to the facts you see, will serve the best interest of all. Addiction to the opinions of others is fraught with its own set of debilitating consequences.
All of the real estate pros I know, including those participating right here on Trulia, will advise citizens to refer to the crime statistics on the local law enforcement website. Again, its is access to real and timely data that is essential when making important decisions in ones life.