I thoroughly enjoyed it. I read a lot and almost always have a book in progress, but 99% of the time it is non-fiction or an autobiography. "Ready Player One" was the first fiction book I'd read in I don't know how long.
The movie rights were picked up immediately. For the life of me I can't imagine how they can make a movie. It isn't the visuals/effects that are a problem in this case; it's the intellectual property clearances that would cost a fortune. I'm cautiously optimistic that they can work out deals with all of the various corporate entities involved to allow things like footage from WarGames, etc.
I thought about that and it would be extremely easy for a movie company to replace whatever intellectual property they didn't own with something from their own library. In this case Warner Bros. owns the rights so expect something like Harry Potter references to replace
references, etc.