Yes, this thing is heavy, but if you're transporting your $2k synth, you're going to want to keep it safe, and this thing is very sturdy. It fits the Matriarch snugly on the left and right, but leaves room in the back for the cables - this is nice because I keep my instrument in the bottom half of this case during general use, and there is space back there to keep the power cable plugged in. It sits high enough that you can comfortably play the keys too.