The Arctic Train is a welcome change from the typical City trains. The set comes with six minifigs, two arctic foxes, track, train motor, PUP hub, and remote, making it well worth the pricetag. The snowcovered rockwork is well done, and despite what the others are saying, the rockfall effect is pretty reliable, and even if the rocks don't fall everytime, the track is short and the train will pass by again in a few seconds, usually triggering the rocks to fall no later than the second pass. There are a few small Easter eggs, too, like the Yeti wanted poster, showing the Yeti minifg from the Series 11 collectible set.
I will comment that the rock tunnel could be better secured to the track, as 4x 2-stud connections really is a bit light, so releated trains passing can break the track free, especially if played with on carpet. This also was a bit difficult to build if not on a table, as it was easy to keep breaking kff while handling.
One of the real stars here though is the second new track element, the rerailer. This really is a must for larger layouts, especially coming off switches or removeable bridges, as it's very effective at popping a displaced wheel back into place.
Overall, it's a nice set, and a great one for getting more kids into the LEGO train hobby.