-.- She's not complaining because she expected them to make her level faster...she's complaining because the techniques are literally useless when compared to the other Kekkei Genkais. Uchiha? One chakra activates Sharingan which gives you a great bonus to your fighting ability, even at the first reset....the second unlocks more techniques which are actually worth their high cost. Hyuuga? A bit more expensive, but the attacks(64 palms) are extremely effective for their costs. The gates have a heavy drawback, sure...but their damage is obscene. ._.; No, the Kaguya specialty is severely underpowered and far too costly; Having the first technique on the list cost as much as it does and give such a small buff is ridiculous.
By the way, I'd love to meet whoever is complaining about the Sharingan and ask them what they're on....
And heaven forbid we not simply accept things in a mindless fashion! We should be stoned to death if we even dream about asking for something to be adjusted in a game we play! </sarcasm>