The bag fits the Beat Bass perfectly, the material is robust and it is well padded. In this respect, it's a good buy to go with your Beat Bass or similar.
Now the negative:
1) The zip-pulls seem of poor quality and of thin, weak alloy - I'm just waiting for them to snap off. Not a deal breaker, but if you are using the case a lot, it's only a matter of time before they will break.
2) The side carry handle is placed too far down towards the bottom of the case. The Beat Bass - any hollow body Hofner style violin bass - is head-heavy. If you are carrying the bag by the handle, the balance point is too far towards the head, so it tips head-ward when carrying. It's very easy to pick up by the handle and for it to tip headwards and bash into something. Care is needed!
This is exacerbated if you place anything in the neck-pocket on the case.
Moving the carry-handle further head wards will fix this.