Manny, Menards track has been out for several years. I built my current layout using it and Lionel UCS/RCS sections and Lionel and K-Line switches. I have had no problems, works fine. I did have some shipped to me. One thing that can be a bit surprising, the O-36 curve sections are longer than the O-42. Not a problem in any way, when I opened the box of O-36 I just thought I'd gotten the wrong thing since they were long.
0-42 on the bottom, O-36 on top. Sides painted, ties added.
I'm quite happy with it, will likely use it on my next layout.