It was pretty cute, if somewhat of an average read. The characters were good - some meh, some that I really enjoyed - and the art was nice as well. The 'magical girl' aspect was actually fairly limited - I think at one point it went about 8 chapters without the main character doing any magic at all - which could be seen as either a good or a bad thing. (I did like that there weren't long battles and transformation pages/a lot of subplots that were basically 'hey there's a problem! fix it with magic! magic goes horribly wrong! problem solves itself anyway happy music!')
It was actually kind of a disappointment after watching the anime, though, for me at least. For a manga that focused on people and relationships much more than plot (what plot? there was a plot? -_-), there were several characters introduced that were never really used, relationships that had problems that weren't dealt with properly (if at all) or created stupid problems unnecessarily, and other characters that seemed to fall in and out of love incredibly quickly, or only developed feelings because it would cause drama between other characters.
And oh my god, Sayaka the 'Ice Doll' was a really annoying trail to follow. Most of the time, it felt like she was just there to give Yuta a new love interest/rival, and to make drama - really, really predictable drama. And it felt unrealistic that no one seemed to harbor any hard feelings towards her at the end, despite everything she'd done to them.
The ending was also kind of a let down, because there was this big decision that a lot of time was spent building up to...that actually wasn't that big after all. It felt like a lot of somewhat-angsty but character-building potential was lost there for the sake of lightheartedness. Also, there were no loose ends to tie; everything pretty much was forcibly wrapped up, whether it needed to be or not.
But, that said, it was an easy manga, short and pretty adorable and nothing you had to think too hard about. I read it in two sittings and walked away with a shrug and a smile; the anime was much better, in my opinion, likely because it focused on less characters and gave them more time to grow, but this wasn't bad to read afterwards.