I had very high expectations for this module, especially after seeing the Red means recording videos. I spent a good three weeks on the module but still came to the conclusion that it wasn't for me.
It started with loading my own samples, which I found very hard to do. For example, creating your own projects and then putting different WAV files into those banks didn't worked for me in those three weeks. Eventually I was able to put single WAV's on the multigrain, but only 1 at the time and not in a complete bank of 8.
In comparison, I now have Qu-Bit Stardust, which obviously is another module but with this it is a piece of cake to load banks with samples.
Another drawback for me was the inability to hear the entire "dry" sample. Now, I understand it's not a sampler, but it would be much easier to determine which part of a sample you want to use for grains.
All in all, a versatile module, but given its price and complexity, it's not for me.