Episode 1 is out. For the most part sticks to the manga so faithfully there's not much to comment, but here are a few small spoiler free observations.
Touta's voice is really bad, maybe the seiyuu is far better elsewhere, but here she doesn't fit the character at all.
Why was Akira walking around the school in a swimsuit? I get she's from a swimming team, but aren't you supposing to dress up again before leaving the pool area?
Why does Negi sound so childlike? Even in the first anime, Satou Rina used to have less of a pipsqueak kiddy delivery to her Negi. Here he sounds like he's a toddler!
Overall Horie Yui seems to be the Negima cast member holding up the best, her Makie sounds just as fine now as she used to. Great job there.
The OP seems more fitting a pure harem comedy than any sort of action show. I was hoping for at least a few images of Powerful Hand, Fate's Ala Alba and Negi's team looming ominously and posing in a cool way, or something. The part with a huge pink heart downright reading aloud 'LOVE' was especially cringeworthy.
Also, by the way, UQ Holder, Vandread called, it wants its ED back.