Got mine a couple of days ago (says one with four spire sets...), and I am happy with him, I got:
- 5-hour booster (like 2-3 times)
- 100 diamonds (yep, 100, is crazy)
- A coin rain, but forgot its %.
5-Hour booster seems to be the most common drop, which is great, and I think it dropped me something else, but I can't remember.