I have also installed this on my QNAP NAS running MinimServer and am bowled over by the results. So good are they that I would recommend anyone using MinimServer to follow Simon Nash's clear installation instructions and give it a try. Indeed I think it would be worth anyone with a streaming system installing MinimServer just to be able to access this service.
Yesterday evening, I listened to the opening of the late night prom: the first performance of a chamber orchestra version of the Philip Glass/Ravi Shankar concept album 'Packages'. I was intending to sample it for a few minutes to try out the sound and then wend my way to bed. Well, an hour and a half later, as the applause died down, I finally switched it off. The "being there" sensation was so strong and the music so enjoyable and appropriate for the time of day that I could not turn it off before the end. The quality of the FLAC stream allowed me to hear the efforts of the BBC sound engineers who really are outstanding. Fine details of instrumental attack and decay came though without losing the overall sense of a group of musicians playing together, making this one of the best listening experiences I have had recently.
Finally, a plea. If it's feasible with your system, please try this service out. If you enjoy it, and I'd be surprised if you didn't, please, please pester the Beeb to make it permanent.