Syndra public opinion poll

So, I picked up Syndra towards the end of season 4, and obviously at the beginning of season 5 she got some pretty significant nerfs (Q base damage at lower levels and E stun width). Her laning was admittedly very strong, but it seems to me now that she's at best balanced and likely underpowered. I've commented elsewhere that I feel she could at least use some small buffs to her mana costs, although I think the biggest thing holding her back is the reliability of her stun.

Although her winrate is currently fairly low (45.5% according to lolking), this is perhaps to be expected given her high skillcap and poor positioning in the meta (mana-hungry burst mage in a field that rewards tanks and high sustained DPS). I've heard people on both sides of the argument in terms of how strong she is and whether she ought to be buffed, so I was just curious to put out a poll to hopefully get a better sense of just how many people feel each way. (Note: For the question below, I'm imagining Syndra's power level given that she is played proficiently, not perfectly. I don't think it's reasonable to balance every champion around how well Faker can play them; it is reasonable to balance around good Diamond players, though.)

COMMENT (added later): Below, some folks have rightly pointed out that regardless of her intended power level, Syndra has some bugs that clearly need fixed. There is, however, some evidence that Riot is working on this (though apparently it's a really hard problem...); see the Riot response to this post.