Last Wednesday after the floors had the first sanding, I was able to stop in and take a look. It was looking great with only a few small issues, the biggest being this stain which happens to be the first thing seen after walking in the front door. Fortunately, it sanded out the second time around and is hardly noticable now. It is believed that the stain is actually lamp oil due to how the color changed after the first coat.
Can you see the "hill" on the floor?