I haven't ridden a GF, but most of their preceding offerings, inc 26" have all had flex and breakages. The new ones seem as if this has been addressed, a little at least.
I like GF's innovative approach and not following the rest – G2, slacker angles (which many are doing now), working with Fox to come up with the new rear shock, ABP – it all looks good to me.
But! For all GF's gizmo's I would never sell my no frills single pivot Lenz. Until someone comes up with HTA less than 69 deg and chain stays less than 17.3" I'm stayin' with it :D