John,
John Broskie is an excellent designer, IMHO one of the best. I have used alot of his boards, even built his DIY clock. The quality of the boards that he sells are the best I have come across. Almost have as many Broskie projects, as I do Bottlehead equipment, but two different DIY worlds. The only problem with John's projects, IMHO, is that he has too many options that require the builder to make alot of build decisions, and for a senior non technical individual decisions or 20 different options are not welcome and can become quite frustrating, plus communication is not as good as here on the Bottlehead forum. Bottlehead Rocks in the DIY world.