After I got bonus money I started to play NetEnt games. First game was Dead or Alive, but after some spins I had bad feeling about it - the game was really dead, it eats my balance very fast so I decided to try my luck with Jack and the Beanstalk. At this one I triggered free spins feature very quickly, but the result from it was disappointment. Only around x10 bet from all those free spins, the only thing which I done that time was to change the game. Piggy Riches was the next one. At this one I had pretty similar results from free spins. My last game was Immortal Romance where I spent all money which I had. But once again, without any big win.
I came back to Casino Bitcoin next day to claim 50 free spins. I used them on Starburst game. I had one big win there and when I used all free spins I had my balance at around 10€. With those 10€ I played Dead or Alive, but without any big win at all – so I lost it pretty fast.
Otherwise I think this second deposit bonus is good, mostly because of free spins. The free spins could be on some other games from NetEnt software – not only on Starburst. And to be honest I would rather use them the same day when I make deposit.