I bought recently the double with X-Twin (double-decker) and Eagle Wing (The offered monoplane). In direct comparison, the flight characteristics of the X-Twin are much good-natured, so that you (with a little skill) can start as non-modelers literally right out of the box and ends when the battery is empty. The Eagle Wing is a bit stubborn. Due to the lower weight and Schwanzlastigkeit it tends to "pump up" and overthrow vertically stall down (breaks down in crashes but mostly nothing and if they do, you can very well mend with UHU por or Tesa). He is also wind prone than the biplane and can also be fond of updrafts in (for as a Modellchen) catapulted to new heights. If the double-decker is a bumblebee, the Eagle Wing is more of a blowfly. However, the instability can also other tricks to, as the biplane - with exercise, headwinds and forced dives can rolls and loops provoking (not perform controlled - only "provoke"). Those who like something spectacular like and not afraid of trim with screws etc., the Eagle Wing buys - who prefer to simply and comfortably through the park "soft eggs" or give the flyer children is better off with the X-Twin. The electrical components are incidentally also good as a base for building your own balsa or Depronmodellen!