A lot of experience of these kits on the 400GreyBike forum
As you can imagine it's virtually impossible to buy OEM for 20+ year old bikes
So these "Chinese"* kits are a lifesaver for re-builds, crash repairs or track bikes
The reviews are mainly positive but the Hong Kong ones get better reviews
They are reputedly thinner than OEM & some report cracking
But that may be due to the way they have been "forced" on and put under tension
On the whole though, most people seem reasonably satisfied with fit & quality
Particularly for the price
The unpainted option is good SG
But only if you can get it painted fairly cheaply afterwards
But I've seen plain white ones, "tastefully"covered in stickers
I hope you're pleasantly surprised with your purchase
* there are quite a few factories producing kits in the far east & asia