I own the Majestic Dash 8. From the standpoint of systems, sound and training it is a worthwhile, comprehensive model. Visually the aircraft leaves much to be desired. If you are accustomed to the A2A, Milviz or PMDG level of quality and detail you will probably be disappoiinted in the MJ Dash8. The dash panel and instruments are not crisp and easy to read. The exterior model is well crafted but lacks the "eye candy" of the others. The model appears to be a port over variant packaged for FSX.
Positives: The sound set is awesome, especially if you own a high end sound system. Reverse function is built into the system so your throttles function as they would in the real aircraft. Flight idle is forward on your hand throttles with reverse thrust avilable by pulling hand throttles all towards the back. The systems are intensive and well worth learning if you are interested in this particular aircraft.
Negatives: The visual model leaves a bit to be desired when compared to comparably priced alternatives.
IMHO