I'm about three hours into the Spendors. So far, these have the most amazing midrange I've ever heard in my system. In fact, it was about only 20 seconds into the first song that I realized these are something special. The dealer had some Spendor SP100s (older ones) in their showroom and these are sounding very similar. The bass started off somewhat anemic, but it's already improved significantly. These definitely have a warmer tone than the Harbeths, but despite this, they seem to have just a bit more detail. I prefer the imaging of these as well. They sound a bit less "open," than the Harbeths but they're somehow superior in performing the disappearing act. The midrange is simply captivating.
Also, the cabinets have the best veneer finish I've encountered, absolutely flawless!