D1 is quite a heavy keyboard. For people like me that cannot easily lift that much of a weight, this bag is ideal as it has two extra handles along its sides which make it easy to balance the weight. The quality is very good with extra protective plastic shielding on the corners. The only thing that might be slightly on the cons side is that if you intend to use this bag for air- travel you might need to wrap it with extra bubble wrap layers. It is NOT a hard case. Overall I'm really happy with it and I feel it's money well spend.