First of all, the live support is real friendly and competent, you will come a long way with that!
Some other things that I really appriciate:
* Stake originals
* Reward system (rakeback, reload, boost and so on) - the more you play, the more they give you back!
* Vault is gold!
* Design is simple, yet amazing. Don't feel like anything is missing.
* Have all the games I usually play, and looks like they got most of the providers (not an expert, just seems to me that most of the games are on Stake)
As a gambler, you appriciate when you are being appriciated, I feel that I'm appriciated here so thats why I don't gamble anywhere else rn.