In the case of cancellation or severe delay, the airline will likely offer you a voucher for a specific hotel and for food. Ignore it. You will be covered for a full meal at a reasonable restaurant (think bistro, not Michelin nor McDonalds) without alcohol, transport costs to and from a hotel, and the hotel itself. You can choose a standard room at the nicest airport hotel. You will be covered.
In the case of cancellation or severe delay, the airline will likely offer you a voucher for a specific hotel and for food. Ignore it. You will be covered for a full meal at a reasonable restaurant (think bistro, not Michelin nor McDonalds) without alcohol, transport costs to and from a hotel, and the hotel itself. You can choose a standard room at the nicest airport hotel. You will be covered.