It's fantastic! I like that the ballistic fabric has an inherent stability and structure so it doesn't sag. The base is cushioned and covered in dyneema on the interior, which will help prevent damage if I happen to drop the bag or set it down roughly. It balances well, even with just a spindle in it. This bag still won't protect the spindle from getting crushed if some one happens to sit, step or drop something heavy on top of the bag, but in fairness there are very few bags/cases on the market to protect spindles from those accidents. I like that it has attachment points--you can easily clip it into a bag or clip a strap to it. It fits perfectly in the S25 main compartment, it fits well in the swift, and it fits in, but towers over, the little swift. I doubt I would use this for anything but car or rail travel. I would not want to risk having a TSA agent confiscate my spindle. I've mailed them back and forth with USPS just fine.
So far fiber does not seem to stick to the interior of the bag. The other side of the ballistic fabric has a coating (I'm guessing it is water resistant) on it that makes it pretty smooth.
Both my Tibetan spindle (12") and my Turkish (10") fit. Finding a bag that would accommodate the whorl of the Turkish was one of the key factors in buying this bag. I can easily fit one of the spindles, a support bowl, and lots of fiber. You could easily throw in a niddy noddy (dissembled) and a nostepine.
I don't think I have any photos of this, but the top of the bag draws shut very well. Nothing would be at risk for slipping out.
In the Black Dyneema S25:
In the Steel Dyneema Swift:
In the Little Swift:
What fits in (with room to spare):
With a Tibetan spindle and fiber: