I give it a 3 just because they have a…
I give it a 3 just because they have a replacement blade for them (dewalt z254 zero turn).. mtd ones are over $100 for 3. i have ran them for 28 hours and i am sharpening them for the 2nd time. They do not keep an edge long but the factory ones didn't asway. They meet the specific of the factory blade unlike the others i tried.. others do not have the offset in the middle of the blade that helps with the vacuum of the grass before it is cut. If there was a way for me not to have to sharpen them so much would be the only thing.. i do mow a lot. 14 hours is about a week and a half.. maybe 2 weeks.