Please review this router gantry idea

[EddyCurrent]

This is not a build log, I'm just wanting to know if this design is any good. I've read that the L shaped gantry is good but it tends to put the ballscrew too far back so this is a double L shape made from aluminium box section with the ballscrew mounted centrally. The black & white object is the energy chain, sizes of the box sections are probably not correct yet.