Trusted seller experience

Ive been lurking in this subreddit for a few days and reached out to some sellers from the trusted sellers list. But I am still on the fence and afraid of being scammed.

Is the trusted seller list linked really reliable? I’d love to hear your experiences, right now I am thinking about buying Chanel from Heidy. Is it true this subreddit offers you a refund if the seller doesn’t meet requirements?

What seller and factory would you recommend me for my first ever rep Chanel?

I’d love to hear your experiences and the seller you have bought from and would recommend to me! :-)