Very limited selection of items

Tried Sixty60 on recommendation but not impressed. App isn't user-friendly and the selection is very limited (maybe it's the store sourced from nearest to me - Kloof Street, Cape Town). Basic stuff like a bag of oranges, apples or carrots unavailable weekday early afternoon? First order took THREE hours to arrive. Not 60 mins as advertised! Second one on time but items unavailable and substitutes poor. I won't use Sixty60 again except in an emergency.