Let's just start this off by saying Domino Express doesn't make any noise, doesn't require batteries, doesn't run out or wear thin within a few months and doesn't require any further apps or packages to be purchased in the future to ensure it works. My sons face seriously brightened up when I pulled out this toy/game.
In the box you will find 2 parts of the bridge that easily clip together, 1 bag of red dominoes and 1 pack of multicoloured dominoes; you will also find some track parts and some stickers. While you set up the track (if your child's too young) allows them to stick the funny faces onto the dominoes. What's great is that the red dominoes clip onto the tracks so you don't need to faff about standing them up individually. The coloured dominoes are basically extras so you can extend and customise your full track.
To get your rally going you ping back a domino and it shoots around the loop-de-loop and then it all falls down *yay* You can also knock a separate white domino and have two rallies going at once in a sort of race-rally.
My son is still thinking up novel ways to make his rallies fall and doesn't seem to be growing bored of it which is rare. Normally he grows bored of toys within the week.
I'd give this four out of five stars because it's awesome; it can get stressful standing up the coloured dominoes of course so I'd advise leaving to the child. Overall, the best £12 odds we've spent.