So, currently Trigger Quests (specially the ones you buy with SG) are waaaaaay overpriced. 570SG for 2 Trigger Quests is too much (I'm assuming that buying it gives both Solo and Multi Party PD since "trigger" is in plural). That's around $20-$25 for 2 quests that may or may not give you anything worthwhile. There's so many things to do with $25 on PSO2 that has much more value than trigger keys.
Converse with fellow players