LogFAQs > #980918888

Not really an authority overall but my somewhat informed guess is probably not really. From what I know you generally want Bailu to be using her skill as little as possible and only using her ult and buff from it to sustain. So unless you are ulting again within 2 turns it doesn't seem that great unless things are going wrong.

I mean it's still a buff but I doubt it's a hugely impact full eidolon to get for usability.