It was very easy to park near the start of the course. There is a good amount of space to warm-up in. The course is VERY hilly. I never realized how many hills are in Oak Brook until I ran by the fourth person puking at the top of one... But even with the hills it is a great course! You do run on streets for a bit but also through some nice parks and paths. I would recommend it to anyone looking for something a little more challenging than the usual flat, out-and-back Chicago races.