I like that sportsbet has instant withdraws and since they pay the fee the Bitcoin always arrives fast
I dont know of any BTC casinos that really offer instant withdraws even sportsbet takes a minute or so
It may take minutes but at least they are paying a decent amount of mining fee for a withdrawal transaction that is free.
That's one of the best feature of the site that's why they are gaining popularity in the crypto space, they have improve actually.
The first sporstbook that I used IIRC was cloudbet, then shift to nitrogen, and now I mostly play on sportsbet due to that good feature.
I like to see other sporsbook compete, though they have better odds but does not have instant withdrawal, they can't attract volume of gamblers.