I face lather and have found that my DB brush scuttle is just not big enough for even my Simpsons Colonel when it's loaded with lather. I was looking at a few options and ran across this. I got it today and it's exactly what I wanted. My Duke 2 in best fits in it perfectly and it keeps my lather warm for three passes (I'm sure for longer, but I only do three passes). I didn't do the full scientific test to see how much heat retention it kept at 5 minutes and 10 minutes and on, but I know it worked for my entire shave plus. I filled the inner and outer chambers with hot water from the tap before I showered to soak my brush, dumped the water from the inner chamber before I placed my brush full of lather in it, and I had hot lather for all my passes. Also, the water I dumped out of the outer chamber when I was finished shaving and had rinsed the brush was still very warm, almost hot. If you're looking for a great brush scuttle that's also beautiful, this could very well be for you.