I've done it ~5 times (with 4 characters each), I have only gotten one of the common mounts, I keep getting the damn wall map recipe and the title deeds... (how many of these could I possibly use?)
Either way, it ensures this content will be hard to get groups for in a month or two, because of the grind mostly, secondly... these items pretty much never have to replace. Recipes, deco, crystal moonstone, titles are all permanent. I guess you still need to farm for resources in these areas to get the ingredients to make said potions or other craft-ables.... so I'll just say it- How about making those Cameo's PoF-able?... (atleast add another item most people would use contribute to the sale of PoF!
Anyway, between me and 2 guildies, we've gotten 1 common and 3 uncommon within ~5 runs. this is between 7-9 characters on each run.
Someday the RNG will be on my side...