It does the job, it's a bit expensive for what it is, my Fender and Roland amp covers were better quality and cheaper.
Also the hole for the strap is a little too wide, which means dust can still get in there, which is a bit of bad design. You have to pull it forward slightly to completely cover the control panel, but anyway it's better than no cover at all. My studio is in a brick outhouse in the garden and gets quite dusty, so I have to buy covers for everything!