Mine were really poor. I got 40 cards and not one single epic, legenday or gold.
In fact in the last 332 cards I've opened (the history only goes back that far) I haven't gold a single legendary and I only got 5 epics and just 4 common golds. It's pretty demotivating. 😢
dang that sucks but hopefully the due factor comes into play and you start to get really good cards