Kind of. You have to like the MMO grind to make it worth it, but if fetch questing and hitting the same 3 buttons in a pattern appeals to you, go for it. She is only one of many waifu-grade characters.
Don't wanna intentionally push anyone away, I have 54 hours on my save, and still have about a continent and a half to go through, form what I can tell. Distraction, thy name is side quest.
Seriously though, FUCK Poppi's minigame. That shit is annoying.