You might want to check the threads at diy audio.com The overall feedback on the Buffalo seems favorable.
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Another idea, in order to generate more interest on the threads, might be to start a thread entitled ESS Sabre Dac. There are several model variations ie. ES9012, 9018, 9022 and 9008 & 9006. According to the audio press, several manufacturers are beginning to use them within their current line ups. McIntosh and SimAudio for example.