I think this is wagering requirements is not so nice at this bonus. I had to wager 1,600€ before I could cash out the winnings. I played different games from Microgaming software provider. At first I had some good luck at Game of Thrones and I raised my balance a little bit, I had it on around 80€. Later I checked out how much do I need to wager and I saw that I wagered only around 100€. Because of this, I raised my bet later from 0.6€ to 1.20€ bets. I had some winnings, but at the end my balance was falling down towards zero. I ended at zero and later I used 10 free spins on Starburst. From them I got almost nothing and I logged out from InstaCasino.
I think this bonus is ok, but nothing special. Because there is 40 x deposit + bonus W.R, I do not like it very much. I think this is set too high, it could be lower, more friendly W.R for first, welcome deposit. Free spins which are given are really bad, at first deposit you get only 10 and at second and third deposit 20 free spins on Starburst. I think there could be 50 free spins into one bonus and that's it. It would be much more better offer for the players, i think. I will rate this bonus with 7 stars. Free spins could be at some other game too.