NO they are not built like the Mountainaire or any of the higher quality Newmars. They all are good coaches, BUT! at different levels. The more you pay for a coach, the more quality has been put into that coach. Saying that they are all the same is like saying Chevy being a GM car is the same quality as a Cadillac also been a GM car.
DutchStar does manufacture a better coach now then what they used to, but it is no Mountain aire.