Been using both simultaneously for a while now. I still prefer the Brinsea. The chicks can touch the plate. With the ComfortChicks they have to stay close but will not touch the plate.
I think if the Comfort brooder had a cover on the bottom side, as Brinsea does, the problem would be solved.
Ive finally felt the courage to try this with chicks. We are having to put it on the highest setting. And even then they are avoiding the entire thing.
I definitely feel this could use some improvement in regards to the heating.