 Reasons to buy: Larger water tank and pod tray - Has an Aeroccino Milk frother option (Citiz & Milk) Reasons to avoid: The standard Citiz model doesn't have a Milk frother - Limited shot size options The Nespresso Citiz and Citiz & Milk are the larger and more reliable sibling to the Essenza. We have used a Citiz in our office for the past two years and it has been super reliable given that it churns out a lot of coffee every day. Whilst it doesn't operate any differently to the Essenza, it does have a larger water tank and pod tray for those that drink more coffee each day. This model also has a version that comes with an attached Aeroccino milk frother for those who enjoy a latte or cappuccino. 0 - B