I bought this for my daughter when she was fed up of her bath chair, and capable of sitting up in the water herself. She loves it.
However, I find the 'hot spot' is slightly sensitive, she does have the water warmer than it thinks she should, but to have it as cool as the mat says it should be is really quite cold for her! Or am I just a bad mummy!?
With this in mind, I could have just bought a non slip mat very cheaply and it would have done the same job just as well.
But all in all I am pleased I bought it, because as well as doing the job - in keeping her relatively still, it also keeps her occupied, a much more interesting version of the non slip mat.