Conclusion after two days: The crawler does make fun and pretty neat climbs over hill and dale, by snow and mud, etc. The gear units are quite loud, so that the indoor game quickly annoys parents ears. The battery module consists of 5 AA cells are sealed in a foil and equipped with its own plug. According to (including) are mating connector mounted in the battery compartment and on the charger. Absurdly, so you can not use standard AA batteries (z. B. Eneloops XX with then 5 X 2400 mAh). Who does not want to wait for the recharging of 5 X 720 mAh weak batteries with the 08/15 charger (about 2 hours), so an overpriced replacement battery module must be backordered. While standard batteries are still announced in Maisto online catalog, is a clever marketing fox has probably again devised a great thing, how customers might abschröpfen even after he bought the thing and now suffers from the charge frustration. After all, the charge capacity previously held for more than an hour playing time. The control is rudimentary: one speed step forwards / backwards and steered, left / right and straight on (adjustable). The turning circle is quite big, about 3 m, also because there is no differential and the rear axle drive pushes ahead accordingly. The speed (5 km / h) corresponds to a fast walking, so nothing for racers, but indoor more than adequate. For RC beginners this very coarse control options already require course practice and skill, but this is also a challenge for the children. Climbing characteristics are also quite fun. On plywood it reaches about 40 ° gradeability. An obstacles (eg wall) he gets sometimes high to the front wheels until it rolls over backwards. Boot Normal curb it creates rather rare. The 2 engines for all-wheel drive are strong and can not be stalling in weight, but possibly just turn the wheels. The crawler is sometimes even one storey high (2.5 m) fell between steps down, but has suffered no damages. So he seems to be sufficiently stable. For the price I would buy it again. One point deduction for the VA technically nonsensical battery marketing.