Ron’s process is amazing - he does multiple coats over several months, and the clear hardens over that time, and each layer adheres to the next, giving them lateral strength. It’s outstanding and the playfield really does look like glass. He’s the ONLY guy who has the patience for this though. But man, it is every bit what people say.
Make sure you have an understanding of what your guy is going to do as far as touch ups, how the paint will be protected and what clear he uses