We use the "stacks" and find them very useful for packing smalls, t shirts jumpers etc. We then pop them in the bottom of caravan wardrobe and it keeps things really tidy. We just put them into our normal soft bags though so can't comment on full system. Have found them to be good quality. Bought from Taunton Leisure with some discount on list price.
we have some of the larger pack and go bags (after getting Outwell vouchers),I can't remember what they are called but the ones that stand up as shelves, and the ones that can be hung up on a rail.
We have not yet used them camping, so I can't really comment on how they work as shelves or hanging units. We have just left the bags lying flat on the floor in a corner when we have been away. But so far we have found they are great because they pack down small when not in use (previously we used canvas bags - one each). So far we have used one of the bags with 2 sections for us grown ups, and another (this one is one of the hanging types) with 3 sections for the kids. Having the clothes in sections is certainly easier than all in one large suitcase/bag. The stacks bags have also been great for smaller items (undies), and we could do with more of them so we had swimming stuff separately, kids shoes, and then bits and bobs.
So overall impressions have been good - but I'm sure you will find cheaper imitations on flea bag as is the way of the world now.
Ribble
I've got a Cruise 45, which was a free gift with camping magazine, I'd been thinking about getting one so couldn't resist the subscription when I saw that it was the gift.
I'm so glad I didn't buy one because to be honest I think they are a bit rubbish for the price of them. I find it quite bulky compared to our old holdall, and when hanging up everything just falls out of it, I thought I would just use it without hanging but after only a couple of times the lining inside the lid has come away. The ones with the solid ends may function better but ours was a big disappointment