Dude, I’ve been there. It’s creepy as shit and super amazing. You should go.
When I went a decade ago one of the first displays was the corpse wax lady in the coffin. It really set the tone.
I went there in like 2003 or 2004 and enjoyed it. Wanted to take my wife there when visiting the US recently, but just couldn’t reasonably fit it in with the travel times.