Cutting the rear bumper cover was necessary for any replacement to look good as the SSO (IMO) just looks off as a full replacement.
I can admire the thought and time that went in to the R&D for this front piece & how it pays homage to the front bumper cover with the attempt to retain the lines around the fog light and the factory emblem (SR5, Trail, or TRD). However I am partial to a direct replacement (no cutting) as the lines look cleaner, even if they are different from factory.
For those of you who don't mind cutting, this looks to be a promising piece.