I give 4 out of 5 stars for durability due to the fact, that I had to glue both of the LED spotlights after few severe outdoor uses.
The battery charge is enough for a session of about 20-30 min of nearly continuous driving, which is fine, since you wanna get you a rest after a rough off-road driving. Changing the rechargeable battery doesn't take long but needs a screwdriver (provided!) and a careful attaching/detaching of cables. However, charging with the supplied USB-charger takes many hours (about 4-5).
All in all an absolutely great toy for kids starting from 3 years old and older! Most important - it is very fun to play! The price absolutely justifies few tiny imperfections.