I bought 2 of these cases for some student violins and for this price I can say its really a bargain.
I wouldn't carry an expensive violin in this case, but still it looks pretty sturdy, stable and it has a simple yet nice design.
The violin fits perfectly inside, without leaving space for shaking around.
The only issue I can find with this type of case is that you can't carry around music scores with you since it has a small back pocket.