He's scored 8 goals in the Spanish secon tier after 50 appearances, the Spanish second teir is probably a bit weaker than the Championship so you can't claim he's better then Barnes either at the present time given his age and based only on stats. No idea if he does other things for the team...
He hasn't though he's played one cup game and one early european fixture where Barcelona were already steamrollering the opponenets. I've never seen him so can't say if he's bad or terrible but he certainly based on stats, which is all we have to really go on, is no better than Ulloa who scored...
He's playing for Barcelona B in the Segunda Division, Ulloa's strike rate in that league is significantly better than whoever this fella is (although admittedly this fella is a lot younger).