Great RC truck, with speed and power. The RC truck will go 20mph when it's fully charged. The speed does decrease after a while, the batteries only last for about 15 minutes on (normal mode). I like the 2 speed settings of slow and normal for the kids. Speed and turning radius is awsome for a Rc toy of this price range. This truck is meant more for flat services like gravel, asphalt, and dirt, I tried to sort of climb it but it didn't like it. I flipped and hit this truck on things pretty good and it's still working fine . Overall I'm very very satisfied with this Rc Truck. Hope to RC race it soon against a friend.