Now now, it's always great to have unexpected characteristics or MCs, but I sure didn't appreciate the MC's cowardliness this time. As a review above has said, the creators' names attract me. However, after reading about 4 volumes of Platina/Platinum End, my reaction was a "What the hell " Frankly, I'm thoroughly disappointed by the protagonist and his love interest. The only character I liked was Nasse, since she had some sense.
MC - Our protag Mirai starts off as this kinda desperate for happiness but a good heart guy. He means well, no lie. We can admire what a great citizen he was, with his honest love for the love interest, Saki. However, he later becomes a total goodie-two-shoes who's unable to do shit even when he has a chance. YOU CAN'T GO THAT FAR. It seems that he's unable the realize that he's in a sort of death game, where the competitors are hunted like animals. I liked that he was realistic at first, until he started going all "I WON'T USE THE WHITE ARROW" and refusing to hurt anyone. He was a terrible MC.
Love interest - I didn't like Saki at first because she was a bit useless and made Mirai her slave/victim/whatever. So my opinion didn't really change once I was midway through the series. Mirai was getting ready to fight Metapoliman <is that how you spell it? I can't be bothered to check>, and surprise surprise, Saki cannot join him to fight Metapoliman. Of course, looking at it strategically, she really couldn't fight him. But for the love of character development and some actually contribution, I found her pretty damn useless.
In conclusion - art is great, plot would've been great, character development is annoying and may be nonexistent.