I am a Grove rider myself. Not the road edition, but Assault and Hard Core MTBs. The paint quality is very good. The designs are loud, but they really put some effort in it. The welds are superneat and minimalistic.
This road frame was an oddity in eye of the traditional road enthousiast. The fact that is from US, there is a tie with MTBs and that it is welded isn't an easy story to tell to customers who believe Colnagos are the holy grail. Slim Chances, Yeti Road Projects, Bontrager Road Lites where also not sold in huge numbers. Neverthless, I doubt whether in one Colnago went 1/10 of the effort that went into a Grove.