Bought to cover a battered old student bass at school, it does fine. It keeps the dust and rain off and means I can put it the back of the car without worrying. Good zips and stitching, a sleeve for the bow and a large back pocket.
Its seems to be a bit of a loose fit for a 3/4 but that may the bass' fault. The handles are oddly placed, so they're on the underside when you unzip the case but apart from that I've got no complaints, especially for 35 quid.