I`ve had the case for over a year now, I use it all the time, it`s been thrown around, heavy things have been put on it, people have sat on it, it has been sliding around the boot of many vans and still, there is virtually no sign of use anywhere on the case.
The Helix fits in perfectly, it doesn`t move around at all and there is enough space for a pretty long power cable inside it.
Basically, it`s a no brainer. If you bought the Helix, buy this case, I trust it 100%, it`s really sturdy and easy to use, I have no complaints at all.