I bought this for my five year old son and I can honestly say it is worth every penny. Not only did he enjoy taking part in the building process (obviously he had help), but he has played with it non-stop since.
You can build the Police Station in four key stages. The patrol car, the prisoner transport, the jail block, the police offices. Instructions are clear and precise, easy for children and adults alike to follow. All the pieces are provided in numbered bags so they are easy to find and you can build them at your own pace without worrying you will lose pieces if you want a break before you start the next stage.
The whole building has several ingenious moving parts; slide-opening cell doors, escape hatches in the jail cells and roll-down shutters on the vehicle stations. The office block also has lots of brilliant little details, such as a mug-shot area, computer desk, stolen money and jewel, TV monitoring station and reception desk etc. There's also a kennel area for the police dogs (we have two, the one that came with the station and the one that came with the dog untit vehicle LEGO City 7285: Police Dog Unit
My son has spent hours and hours playing with this set. He's built a garage to repair police vehicles with his other Lego bricks and he's used other Lego figures from the mini series and Ninjago sets as 'bad guys', keeping his cells full. It is a timeless and engaging toy that is played with everyday.
It's also great to exercise for his imagination, played with in conjunction with the 'Spot the Crook' book. Spot the Crook: A Search and Find Book (Lego City)
You can recognise all the Lego City playsets and characters which are illustrated in the book. It's brilliant how it all fits together.
A fantastic investment!