I liked the alternative 'tacticool' armor for Tali, maybe not as much as the original, but it seemed to finally protect that extremely fragile looking helmet-visor thing all quarians tend to leave completely unprotected for some reason.
Who knows, the visor itself might be made of whatever superbuckycarbonstuff and in fact be the most durable part of the quarian suits, bit like a chainmail bikini thing, or rather, a space marine thing: the less armor covering your face, the more invulnerable you are. In any case, having some visible armor plating on her head made me feel a bit more at ease.
I sure hope there are some additional optics installed, though.
The ME1 credits song had something to do with this too, sort of.