Recently rolled a Sakuya and was wondering if it's worth it at all to level her up and whatnot. I realize that there will be a future UP decrease to Samurai, but I'm not sure if even something like this provides enough leverage to having her around. She just looks like a nice unit to have around to slaughter a bunch of small little goblins trying to rush down but will be utterly destroyed in any scenario where she ends up blocking two large foes.

I feel like most people wouldn't recommend Samurai at all, but it'd be a real waste if she just sat in my box doing nothing. Are there any particularly hard maps (Nutaku or DMM) where having a samurai would help, or are they even beyond their niche and are just inferior to everything else?