I used mine for awhile, but decided they were far more trouble than they were worth. They most likely would be ok for a hobby farmer on an acreage who uses his tractor for light duty occasionally, but for someone like me who farms and really uses his tractor, they weren't worth a bum rap. Hooking up was a time consuming event that was best done with a 2nd person present. Also the bolts that hold the couplers in alignment won't tolerate much with heavy or hard usage. They wouldn't stay tight due to the bolts mushrooming under hard usage. This made the removal a real pain in the rectum. After I FINALLY managed to get the bolts backed out so I could remove the couplers, I tossed them in the corner. I'd considered using grade 8 bolts, but decided that could really cause some problems, so I also went to a quick hitch and never looked back also.