Followed link from mod post in other thread to get here.
For me I got four nix-hound cards out of 8 crates. A small sample I'm sure but enough to stop me buying more crates. And the five gems per duplicate card seems really unfair when we take into account that buying a same tier reward costs sixteen gems - you need to get 4 nix hound compensation cards to buy a same tier reward. Kind of a slap in the face.
I'm fully aware that I took it upon myself to buy and open the crates and that RNG is ... RNG. As it happens, I did get some other nice enough rewards and they will do for now. However, at the rate these nix-hound cards seem* to be dropping I feel like not buying any more crates.
EDIT: * rate: read other threads about this topic.
While we take it upon ourselves to buy these it doesn't mean we should be cheated. If the nix hound is coming in that high of a percentage that means you are losing one card per crate, and since the conversation rate is low you are losing even further.