Just put up a brief review of the Menards flat car on my blog. Nothing to revolutionary, but I did try to get some detailed shots of the trucks, comparing them to those from a Lionel and MTH RTR sets.
http://chicagoskirmish.blogspo...rgaming-terrain.html
Note that it is a wargaming-foscused blog so it's a two part review with the first being related to Menards cars as wargaming scenery. Halfway down is the more railroader-focused section.