I didn't read the top ratings I was just looking at the overall score which hopefully helps bring the average down to what I want bring should be. I haven't checked sharpness yet as I only cut 1/4" MDF. BUT . misaligned teeth on the blade make it impossible to cut the correct line and when I bought the 1/4" version I was hoping for a thin kerf - forget it. Don't be me - read the reviews before you buy this. Someone needs to write BS - 5 star reviews to counteract exact 1 star reviews.