Looks like a pretty good deal. Ronald Luis Fernandez is no longer selling these, to my knowledge, but when he was he was inspecting the guitars thoroughly and doing any needed setup. So this guitar should, in theory, be better than most Esteves out there.
According to his website, he has moved to Anacortes and appears to be focusing on things other than his long-standing import business.
As to Esteve, I don’t have any personal experience, but most of the Valencian guitars are pretty solid—yet reasonably lightly built.