I have a 5 foot Armstrong. It gets used a lot. I have broken a couple of blades but that is the only problem I've had. I have about 3 acres that I cleared for food plots. River bottom buckshot, just sheared the trees off at ground level. Not the easiest on a disc, but they will eventually rot out. Scrapers are a must. Mine came without them, but I built a set out of my scrap pile. It cuts really good and leaves the ground fairly smooth. I also farm about 5 acres of vegetables and break garden spots for neighbors. If I had to buy another disc today, it would be Armstrong Ag!