I defer to murph75's obviously superior knowledge, but the point I was trying to make is that we should not read too much into the fact that Dani has not been played all that often and rarely starts. If you are going for promotion, and you have a team that is winning, you don't change it. Paul Lambert has been doing exactly the same with Vokes, his other loan signing.
Sometimes it can be useful to make a substitution with half an hour to go, it can present a defence with a new set of problems. The fact that both Dani's goals were scored withbin minutes of his introduction seems to prove the point.
My main concern about Dani is not about his skill - he has proved that - but whether he is suited to the physical demands of the Premiership. I think he might be much more effective back in his native Spain.