I never liked slots because it seemed like such a waste of money. I recently decided test if my feelings were right and joined wagering contest. Deposited around 30 USD worth of BTC and received 60 USD welcome bonus.

I used 20 cent spins so cumulatively I had 450 spins.
 
I tested 3 or 4 different slots and I got only one-digit bonuses. In future I'll stick to other casino games with which I have better experience with.