A game should be engaging and exciting, if it’s boring, hardly anyone will play it for long.Being able to verify the fairness of a game is a great opportunity. I think it’s useful both for the casino itself, as a way to build trust and promote its services, and for the players, since it’s an interesting and reassuring option.
I don't really check the fairness, I try it first and spend 100 rolls with the minimum amount. That's how I see how fair a game is, and sometimes the whole slot provider will be affected by what I decide.
In slots, I stick with slot providers who give a good return. Not Pragmatic, I don't like that. It has good returns only early in the game, but as it goes on, it will be on a losing streak for a very long time, unless maybe you refresh the whole thing, and the algorithm will change.
Anyway, in today's slots, most games are high volatile, it's difficult to find a game where you will really feel the back and forth fight for money.