Gizem Karadayi is a really good digger. Her passing could use some work but I think she is definitely among the best Turkish liberos.
Her reception is really shaky to play in top level but agree about her digging skills. I think she could be very useful in a 2-libero system but I don't know why Guidetti uses only one libero. Gizem Örge is the best receiver libero we have but she is not a spectacular digger