We like mud as much as the rest of you, but we also like how a clean bike rides better. Raleigh's brush set gives you four specific scrubbers to get at all the tight spots and even behind the ears.
The most useful is the tapered brush that's great at freeing any faux-bar trapped muck, and the sprocket cleaner has a good plastic scraping edge. The wraparound brush works well on tyres but the bristles are too abrasive for delicate frames. They feel durable overall, with great rubber grips for soapy hands, but our combo one is coming apart in the middle.