What are your's Dos and don’ts of building a product experience?

In my opinion, Do focus on user needs, iterate based on feedback, and strive for simplicity; don't sacrifice usability for aesthetics or neglect the importance of accessibility in creating a product experience that delights and satisfies users.

Here's my checklist about the Don'ts:

Avoid feature overload. Don't rely solely on internal feedback. Don't sacrifice usability for aesthetics. Prioritize performance optimization. Adhere to accessibility standards. Actively listen to user feedback. Continually monitor analytics post-launch.