Lars, as far as I know they are all fairly similar in design. The motors make the plane go up and down by increasing or decreasing their speed, and turn left and right by slowing one motor down. None show landing gear in the advertisements.

I'm not saying that the planes are bad, or that planes that fly like that are bad. Some are very good, but these are an unknown.

Unfortunately, I'm not aware of any other kits or ARFs of airliners.