Identify Customer Requirements $($WHATs$)$

$1)$ Taste Preferences:

$-$Sweetness level

$-$Tea flavor options

$-$Quality of ingredients

$2)$ Service Quality:

$-$Speed of service

$-$Friendliness of staff

$-$Cleanliness of the store

$3)$ Customization:

$-$Toppings variety

$-$Sugar and ice level customization

$4)$ Ambiance:

$-$Comfortable seating

$-$Aesthetic interior design