I purchased this motorized train set for my daughters (3 and 8) after they had a ball playing with a set at a friends house. This set contains over 160 pieces! It has 3 battery operated trains/vehicles and 7 other push type vehicles. It comes with some amazing special features. There is one station where the train automatically dumps 10 little "rocks" into a bin and then the following time around the train will stop and the "rocks" will work their way up a conveyer belt and then back into the train. There is also a cross roads where the train track meets the road. There are a lot more features we have not even explored yet.
Out of the toys my girls got this Christmas, this has gotten by far the most attention. My oldest daughter can't wait to take the track apart (we intially set it up according to the directions) and set it up in her own design. My younger daughter just loves watching the trains and cars moving around and then helping her big sister switch the tracks when necessary.
On the whole I would highly recommend this set to anyone looking for a motorized train set. For the price, this set has a ton of features and is great all on its own!