I really like this dust cover. I've used it on a Roland Juno 106 and a Roland D50. It fits really nice and the stretchy band is easy to adjust for a snugger fit.
If I have one complaint it is probably that the adjustment band is a bit long ones you close it tightly so as to hang on the side, but I'm not sure how you would get the same function without this, so it is acceptable to me.
Love that no logo is printed on the outside, that is very important to me (specially if the logo has nothing to do with the brand of keyboard/synth it covers), nice clean look overall.