There is a decent sized parking lot and a souvenir stand, but everything else is as it was in the movie and in pristine condition. I walked out to the corn fields (taller than me) and waited for Shoeless Joe Jackson to come meandering out, but atlas, all I got for my efforts was a good sweat. Pretty neat overall, but a few degrees cooler and a run-in with an apparition would have been awesome!
I spent a good forty minutes in the museum, which is ran mostly volunteer senior citizens. I can easily compare the exhibit's quality to that of Cooperstown, just on a smaller scale.
Overall, it was a great trip. My one regret is going alone. But what am I going to do? Ask someone to take two days off of work to drive 700+ miles, sit in 98 degree weather for 3 hours, sleep in a cheap hotel, and partake in nothing but baseball activities? Yikes!