It was a great experience for me to stay at Denise's house in the summer for the internship. Denise was caring and very responsive and she helped me a lot.
The house was quite easily accessible to all kinds of public transportations, about 10-12 mins walk to the CTA blue line station and 12-15 mins walk to the CTA green line station. And pace bus 308 could take you to both stations and the nearest station for route 308 would be just 4 mins away!
The house was also in close proximity to Madison street, where has a lot of restaurants. It was not very far away from Oak Park. Hence you could visit Hemingway birthplace and museum easily. And don't forget about Frank Lloyd Wright home and studio.