I've never really liked Cilan.
I've been with the story since the beginning, and I've always liked Brock. I think he failed in character in DP, and it was definitely his time to leave.
But I just don't think Cilan was a great choice. He does fill in for Brock pretty well, but I can't stand his character. While Brock had his gimmick, Cilan is kind of overdone. It's good to throw in his episodes, but it seems like he specializes in everything. And after watching the episode from today, it just seems to get worse. Every time he spoke, it was a reference to food. I think that I get it, he comes from a restaurant. I just think his gimmick dried out really fast.