It suited my purposes:
I bought this cover in order to use it with the amplifier Roland BA-330 because I had not found an exact cover matching that amplifier.
The purposes I intended were:
* Transport: Avoid scratches and reduce minor lateral impacts, and access (through the cover) the amplifier's carrying handler;
* Storage: Protect from dust.
As a bonus, the amplifier's charger also fitted into the cover's side pocket.
As the Roland BA-330 has a slightly circular frontal shape (and the cover was designed for a square shaped amplifier), there is, therefore, a small extra space on the frontal corners, but this does not bother me at all.