This event is fucking awful, lol. I've been running the gambit since it started, pretty much never hitting max stamina except when I go to bed. I'm level 39. Only on location 79 because of how many times I have to repeat floors.
Haven't seen any of my friends or myself get the cards from silver/gold. I've also got about 5000 stamps because it seems like every time a stamp pick comes up I get the one with a maximum pick of 50.
And of course I have to appreciate the fact that 4/5 of the new event cards are only available through the event gacha. I've got 32 normal gacha tickets and 20 rare tickets that I have no use for because they can't get me anything valuable. I guess I'll get an event gacha ticket from the daily rewards, but I can't get them from actually completing milestones in this event like you could in the last gambit.
But hey, if I wanted to spend a shitload of money, I could get event gacha tickets! Given the encouraging results people have had in this thread, that sounds like a great idea, right? /sarcasm