I'll suggest some evaluation at this point. IMO, the amp is cleverly designed to provide 17wpc continuous across the bandwidth at low distortion, with some pretty fair peak power into 8 ohms. It's a "concept" amp, and as such it succeeds, IMO--a clever design, light weight, large under-biased output tubes that will last for years, current feedback to adjust for low-frequency speaker impedance swings. Many people say it sounds great--and it probably does in many circumstances. My old ProAc Response 2's only need 15 wpc to sound really nice in my room. With the peak reserve, they'd probably be very happy with the Crimson (now Raven, apparently).
The problem is that the amp is sold at 75wpc 20Hz-20kHz at less than 1% distortion. The amp clearly cannot meet those specs. Jim Clark claims that only the sound matters--and he's right in some respects, but audiophiles aren't stupid. Sound matters, but so do honest specs. So Jim is in a terrible position. An example of honest marketing from the days of yore was posted above, with an eye on the intelligent buyer (and he had to have some deep pockets back then) who valued technical competence as well as sound.
jbhiller, the only answer is, does the amp work for you at the price you paid?
Many years ago, I built a pair of single-ended 845 monoblocks for a friend. He uses them with some old Gallo towers (remember those?) By any technical measure they shouldn't have worked--but they do, and he still uses them with great pleasure. No less than David Berning actually paid me a compliment on the amps. So there are anomalies in this world of audio.