I started Eureka relatively recently too. I teamed up with three friends and we all go there together when we have some free time. It's been pretty fun. I don't love that it's instanced because the open world stuff in XIV is so lacking in threat and teamwork that it would be nice to the opportunity to do something like Eureka without all of the restrictions (I swear I leave my stuff in my saddlebag every time and have to go back out!) but the sense of danger is refreshing and while the punishments can be cruel, it rewards engaging with other players which is something criminally lacking elsewhere in the game. The difficulty is still far, far lower than in old school FFXI (sadly) but the nods to mechanics and content from that game are much appreciated. I wish the FATE rewards dropped into the treasure pool, though, because I'm cursed with drops and my buddies keep discarding all of their extra copies of rewards they don't need while I never get any! The treasure pool made farming in FFXI much less depressing!