Multirotor 230 (Not X, Square?!) Frame Review

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This is the first quad I've seen like this in person. The square part that goes around the motors seemed kind of odd to me at first, but the more I think about it, the more I like the idea. I still think it looks odd, but I think the thinner arms would create less drag for the motors. This should make for a good, unique racing drone!
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You can get your own here:
Multirotor 230 Frame:
RD-210 Frame:
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