We highly complained and SE reduced the Favor time from 15 mins to 5 mins... and tripled the proc-rate. I once got 12 Black Swan Feathers in just 1 Favor... a 15 min favor, but that was nice. I agree, I rarely get 20 mats per Favor these days, I usually just use my Steel Spoils to make up for the difference or buy them on the MB, when the only way to get these mats were Favors it was MUCH worse!