IIRC the sets don't match the "natural" breakdown of the coins' values (1p/2p/5p, 10p/20p/50p, L1/L2/L5) but the system is still very elegant. It should be a lesson to the US Mint on how to avoid making mistakes. The L1 coin also makes a really nice "plnk" sound on a counter and has a motto on the edge.