Tons of fun. Great Value , it has two boosters and 2 loops and 2 U turns. This set with few more tracks is enough to keep me and my kids busy. Only thing I have to worry about is getting more batteries.

This is a great set to start off with, it comes with 2 stackable boosters (batteries not included) that give a great boost of speed to the cars to go up and around. It’s also compatible with other track builder sets to combine and create your own tracks with loops and stunts. It’s also very compact when you need to store it. There’s also many configurations in the base set to switch up. All in all it’s a great starter set or play set.

When you have cars that work well with this it's pretty fun. My 3 year old lost interest in it fairly quickly though because many of his Hot Wheels cars don't work very well with the booster. As other reviews have mentioned only certain cars work consistently and it's pretty hard to tell what will work without trial and error. That said it's easy to switch the layout and it can also be used in conjunction with most other Hot Wheels track sets. Also goes through batteries fairly quickly but it's not some sort of conspiracy as other reviews have claimed.

The is an overall great set, but the best part of it are the two strong boosters that you get from this set. Must have for those building track builder systems.

Great addition to hot wheels tracks. Easily connects to other track parts and cars take all the twists and turns smoothly. Takes 4 D Cell Batteries that run down pretty quickly (a couple hours tops) so kids need to be reminded to turn it off when not in use.