They both create nice voice clones...I've tried PlayHT. The issue is using a voice clone to create multiple conversations with different emotional ranges. This usually means multiple clones per actor, and multiple regenerations to get the right tone and emphasis. Many folks are not willing to go through the time and energy to do all of that.
Sure you can test out a single generation and maybe come up with something decent. However it gets more involved when you are doing that for hours of dialogue over the course of multiple videos.