Was using ultra clumping catsan but our cat was coughing which we put down to dust. Since then we've been trialling eco-conscious brands in pellets. Way less dust but pellets are awful for absorbing smell and sticking properly to poo.
Gave this a go and while it is a little dusty there's no cough as it doesn't fly up in the air as much and is plant based, not rock. Also good with smells!
He does kick it everywhere a bit cos he likes digging it but I think a bigger tray would help with this.