Seat reservations are included (3+1) for both legs and Hold Luggage is also included at 3 x 23kg.
The original booking is for 2 Adults and 2 children for the February half term 2022. The flight out is no longer available on easyjets website for a group booking of 4 people but is showing as a single fare at £742.99 so I think that the flight is virtually sold out. If available these flights with bags etc would cost in excess of £5000. So this represents a minimum of a 48% discount on list price.