I'm writing in English because my girlfriend and I were participating in the therapy in English (a couple therapy). …We were attending the therapy for about 6 months.
We found mr Kozak very helpful in our case. Even during the worst times, we went to talk to him with pleasure. I believe he speaks English very well and generally is a very intelligent person. He had the courage to redirect the conversation to the essential point when we walked away a little. We loved him and we recommend for every couple to see him.
The only flaw we noticed (and it was quite disturbing) was that at the beginning we couldn't receive responses after some text messages or phone calls, we had to send the message multiple times. On the other hand, when we decided to finish the therapy, my girlfriend wrote to mr Kozak about it and she didn't receive any response. Quite unexpectable, I must say.