[POiNTx]

Customer validation is also super easy to get.

The easiest way I've found is to include a simple Google Form in the product. It's super rewarding to get feedback from users. Ask simple questions like: "What's your favorite thing about X", "What's your least favorite thing about X", "How did you learn about X" and "Anything else you wanted to let me know?". And make all the questions optional so there's a minimal amount of friction.