Very nice... I put a playfield protector on my Flash a few of years ago when I tore into it to get it working. After touching up the playfield paint and replacing all of the inserts, the playfield protector seemed like a good idea. I waxed the playfield prior to putting the protector on and 3+ years later, the playfield still looks restored and I couldn't be happier. I have never waxed the protector and just clean it with Novis 1 and it always plays great. I would be curious to hear from someone who actually waxes their protector. I would think that getting wax caught at the edges would be inevitable and would be an eyesore?
When I ordered my WOZRR from JJP, I paid the extra to have it delivered with playfield protectors installed new from the factory. My only complaint with doing that was that they appeared to just have put it on and did not take extra care to be 100% sure they got all dust and foreign particles off of the playfield or the protector before they installed it. There is an annoying piece of lint or paint that is stuck under the playfield protector right in the middle of the main playfield that I cannot get to. I have tried blowing compressed air under the protector from a side, but the static under the plastic keeps it in place. Oh well, one small issue, but years from now, the playfield will still be brand new underneath it (with a piece of lint!!).
I like the protectors so much that I bought one for my Judge Dredd for whenever I get around to tearing it down for a restoration. The pin is so fun and I finally got it working so well right now, I just don't want to be without it for an extended period of time since my time is limited to actually work on my pins. Once I dive in, it will take me at least a month if not more with my limited time.. lol
Anyway, I will be putting playfield protectors on every pin I ever get. They seem to be getting more and more popular now and are available for a lot more pins than they used to be.