I don't use my old VOX AC30 as much as I used to (probably not doing my back any good as it is like throwing around an elephant in lead boots), so I needed something to keep the dust off while it is having a rest in storage.
From a durabilty and manufacture aspect I cannot complain, it feels like a hard wearing heavy duty cover. It will not protect against bangs or heavy thumps, as you will need the flight case option for that protection, but for general use it would stop scratches or light knocks whilst in transit.
As mentioned by a few people, this must be for the newer VOX AC30s as I have a 70s model and the handle holes do not line up, but to be honest for what I wanted (i.e. to keep it clean in storage) then it fits like glove over the VOX, albeit as long as you don't have to lift it with the side handles (the holes of which I have gaffer taped over anyway).
All in all, a nice and good priced cover the amp.