I've got what appears to be a Quiver bag - got it in 2010 in Thailand so it's different colours ... black and white.
The bottom half on the back where the wheels are has a plastic 'shield' and skids so you can slide it down stairs. There's padding in the bag on the bottom but it's pretty light - there's also a removable padding layer you can put between boards.
The bag material itself (assuming it hasn't changed) is pretty rugged, like a good hiking pack.
I didn't think I'd need the 'wet compartment' either ... again, if it's the same, it's a little box bag that velcro's in place but it's bloody handy for keeping bits'n'pieces in. And you can fit wetsuit/harness/gloves/boots in there too.
Mine splits in half, with a board compartment and a kite compartment. I got a 160cm bag and it's got a heap of space ... I took mine to NZ these Xmas hols and loaded it with ...
16m &13m Crossbow + bar/pump
harness, wetsuit etc
170x50 Flydoor and 139x42 Flyradical
Took the kites out of their bags and folded them so they fit long-ways and I removed the fins from the boards (but left the pads on) on the way home, and still didn't reach the capacity of the bag
All that weighed 31kg and we just paid the US$100 for excess luggage on Korean Air. They won't take over 32kg but I think I could have gotten another couple of kites and another board in there before it was packed full!
No damaged to any of the gear so it must work
good bag, I like it. I have a smaller Naish 'golf' bag too ...