Gewa Air 3.9 Cello Case WH/BK

I am a professional cellist and I use this case every day.
Pros:
Nice compact shape that fits my relatively large cello well.
Handles and straps are great.
Stands up easily when open or closed.
Plastic material seems strong and sturdy
Cons:
Not enough latches!
Case does not close properly.
Case constantly squeaks when being carried on the back.
The case is great in every way except that I think it needs more latches. There are no latches on the bottom right, and top left side of the case which means it does not seal shut properly. When being carried in particular ways the case comes apart at the bottom right corner and this would be easily fixed with an extra latch there. It seems to me that latches have been removed to keep the cello under 4 kg so that it can be marketed as 3.9 kg. The 'missing' latches also mean the seal rubs against itself when it is being carried on the back and the case constantly squeaks which can get very annoying.

All the problems would be fixed with 2 extra latches so it is very frustrating that they are not there.