@AnnSay Hi there and welcome to the forum.
I'm a very low budget slot-only player, so good or big bonuses are a MUST for me!
However, the MOST IMPORTANT thing that I look out for is the availability of Skrill for depositing and withdrawing, because I simply cannot use any other form or mode of payment!
Things like wagering requirements, bonus terms and limitations, and even the T&C terms are all secondary to me - if they don't suit my tastes, then I simply won't take them!