I got the Aero15. Had to send it in because ctrl+alt+shift+s (IntelliJ Preference menu) and some others critical shortcuts weren't working. Got a reply a week later.

"Thank you for using our service. The explained fault isn't actually a fault. If you want to use that button combination simply remap the FN key. Mind you this will disable any FN key combinations."

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"What about all the other combinations?"

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"Ok we returned it to the technicians who will do their best to repair it."

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I await their response. But seriously, for a company that makes GAMING keyboards this is pretty embarrassing. I'm surprised it hasn't gotten more attention.