It is a pity that the bonuses in this casino are so small.
You have two kind of bonuses.
The first one is a Slot Bonus of up to 6 Bitcoins and 300 free spins. I don't think that is small. I have seen many casinos offer only 1-2 BTC in bonus money.
And there is also a bonus for live and table games. This one is pretty small, I agree with you on that. Only 1% cashback. I have seen this go up to 20% elsewhere. But you get cashback even if you win while other platforms usually pay only if you lose. That is the biggest different apparently.
Free spins that don't need to be wagered, isn't that cool? I am very happy with the terms of the quest.
They have to be wagered 10 times. They are not free. Check a few posts above yours, the user Text quoted part from the quest's TOS.