It was great I used it in my toilet, only to freshen up it and I used cold water and it foamed up,and the toilet sparkled and it cleaned up the limescale that I couldn't shift My elderly neighbour had just moved in and her toilet was a challenge, as the pan was black and the council had left the toilet in a state, so I put the power foaming toilet cleaner down and I left it for 20 minutes foaming and then I flushed it and nearly all the black had gone, so I just had to slightly brush the pan and all the black had gone, I was so impressed with it I brought some more for me and my neighbour, and after reading the box I will try hot water next time. I recommend this cleaner, so go and buy some, NOW