uhh, right now.. it's not the most user friendly. You can delete the fields that the site places in your localStorage (can be done by clearing your cache for this site).
The selections from the question just decide a) what's in your recommended section and b) what category you start on when you first load the app.
The selections from the question just decide a) what's in your recommended section and b) what category you start on when you first load the app.