No archer and samurai drops means no aw sophie or spica, again... ;( Im not gonna use gold units for that especially after i learned about saw. Still, more niels are always welcome not just for sophie but for also other plat angel.
As for event unit she seems to have a go for a while until they introduce nadia or erenia. I may invest to her as nutaku didnt break its break-event-break rotation, thus leaving us with enough time to level her.