cex.io new bitcoin exchange

hi to all ... i want to know if someone here can tell me something about this new exchange?
they have nice app&site which are working fine and fast .... just want to know if they are secure and should I trust them?
so if anyone here already trading with "cex.io" , I would like your opinion and will appreciate it a lot :) .
this is my referral link - you can use it to check them out or find them yourself.
love to all
https://cex.io/r/0/up121141056/0/