Think of distilled water like a thunderstorm. It’s a natural, powerful cleanse that happens in dramatic fashion (boiling!). It’s thorough but temperamental.
Reverse osmosis is like an automatic car wash. You put your car in, and a precise machine blasts every spec of dirt off. Fast, consistent, but uses a bit more water than you’d like.
You choose the style. Both clean the car. Both get the job done.