Here is a quick tip for everyone;
If you are interested in the crime rate of your "search", go to the city's website, click on the Chicago Police Department section, then, after clicking on the proper sections, (if you have half a brain, you won't have a problem figuring it out, just read the options) then you can enter the address you are interested in, and view all the crime history on the location. I believe it goes as far as 1year, but don't quote me.
Now, as a citizen of this fine windy place, I can also tell you that, if you are sincerely interested in a certain location, but are hesitant due to crime/people/traffic/what-not, I would suggest to go and visit it at different times of the day & night. Concentrating on weekends as well as during the week. 1am-5am would benefit you the most, which is really the prime crime time in most areas. Although, be careful (ha-ha!)
Another suggestion, you can go to the listed area, find out when the local Postal Carrier is delivering, and go there at that time, and-VOILA!.....greet, introduce, state your interest, then kindly ask for their time & opinion. They know very well, considering they walk the block/area on a daily basis.
Your welcome :)
Furthermore, to answer your question, I, myself, as a lifelong resident of Pilsen, I would definitely not recommend that specific/particular area. Personally, I am looking to move OUT.