You can easily reach Amesterdam center using streetcar nb 17 which is 1 min away from Citiez hotel.
You can park for free at the Q-park, take first a ticket from the machine, park, go to the hotel, and finally take the paid ticket from the reception on your way out.
It is not kid friendly, better suited for young couples or a group of bachelors. The rooms are too small for more than 2 people and have weird electrical design. For instance, you cannot turn on the washroom's light without turning the light in the room risking to wake up the others sleeping in the room. Just next to the hotel, you can find all that you need for a comfortable stay.