Hello Tobias!
I have now played some time at Leovegas casino and have some ideas.
VIP level system:
I think it would be great if you would get something every 5 or 10 levels and more higher you get then better prize you get.
Lower levels lets say 0 - 30 Lvl you get for example some freespins (for every 5 or 10 levels and above that mayby some deposit bonuses and when really high (example Lvl 60 - above ) you get even some free money with wagering and good deposit bonuses.
I think this would be interesting and fun for players. They can feel that they have actually achieved something and get small reward from it.
And Leovegas should really make a gamr providor filter so they can search their favourite providors games.
Hope you got my point and feel free to ask if you have something in your mind Tobias.