I have, and this is what you should expect....
1, They will NEVER match OEM quality
2, You will have to drill mount holes/damper holes where needed
3, They will NOT be glossy and super smooth (they are injection molded not vacuum formed)
4, They will have a fine "Orange-peel" look to them
5, Colour will be close but not perfect
6, If you want to stick something to them clean with alcohol FIRST (mold release chemical residue is always there)
7, Be happy someone is at least trying to make replacement plastics, if there was n D plastics there wold be NO PLASTICS for some bikes