You'll get a lot of opions on KK attachments. KKs are on the longer end of the price/quality scale. I think most people will agree for the the $ they are OK attachments. There are better attachments out there, but there are also worse out there. Some of the complaints about KK are some pieces may be a little lighter than some others, paint isn't great and sometimes looks rusty, and sometimes the welds aren't the best. That being said, I have 3 KK attachments (rotary cutter, box blade, and sub-soiler) all have worked fine. I abuse the cutter pretty good and have to have any problems with it. Tractor Supply Company usually sells these attachments and can usually get parts for them - they also stock a lot of the parts.