For the time it was pretty cool -- no external taps to manually plug in, just a nice rotary dial to select the output range. As Krusty mentioned, they were sold under several brand names and the fact that Sears offered such an advanced machine speaks volumes about Sears' tool buyers and their customer base at the time.
In your opinion GF, did that customer base turn it’s nack away from Sears, or did Sears turn it’s back to that customer base?

Many books and articles have been written about Sears' demise as America's prime retailer. The American middle class got used to buying at the lowest price from massive discounters like HF, Walmart, and on-line vendors like Amazon, and they non longer wanted to pay a slight premium for good service, quality, and attractive "Brick and Mortar" retail venues. Sears was built, and it heavily invested in all the things that the consumer wasn't interested in anymore. Couple all that with the Sears' acquisition in the 1990s by a cut throat cost cutting hedge fund manager, and the die was cast for failure. They failed to invest in their catalog business, totally missed the impact of the Internet on retail sales, and kept losing stores open in markets where the demographic was shifting away from their traditional customer profile.
Bottom line; it's my firm belief that had Sears invested in online sales in the early 1990's, and given their then existing supply chain, brand recognition, logistics infrastructure, and product/service diversity, I doubt we'd be talking about the Amazon miracle today. Instead Sears & Roebuck Co. would be the dominant force in online retail sales worldwide.