There are 2 classics in magic that magicians have sought to build upon/improve : Out Of This World and Any Card At Any Number.
Ben Harris has taken these 2 classics and melded them into one effect and the results are devastating to an audience.
Here's something I thought I would never say: "I'm dropping Out Of This World by Paul Curry after 30 years and replacing it with A Thought Well Stolen. That's how good this is.
A Thought Well Stolen can make a beginner look like a seasoned expert and a professional performer live up to their reputation. It's frighteningly good. It's so clean, yet the payoff is gigantic.
It will fit any performing persona. You can perform it to demonstrate your skills as a sleight of hand card technician or perform it to demonstrate your ability to read minds or make predictions.
If you are a hobbyist ( like most ) you are going to be performing for friends and family. That's a big concern, because they know you don't possess secret powers. The more fantastic the trick, the more they want to look at the cards or whatever prop you use. You are always told "learn to manage your audiences" hen you raise that concern.
It's true that you should learn to do that, but you don't have to worry about it with Ben Harris's A Thought Well Stolen as there are no gimmicks. Where you're done, they can examine everything and find NOTHING. The effect is so powerful, magicians that don't know it will also think you are using trick decks or other gimmicks.