I don't know that "that good" is the metric against which people are measuring the old Google Reader. I think a more accurate metric would be "that adequate" or "that appropriate". As others replying to this have stated, the old social functionality of Google Reader dovetailed nicely into the RSS aggregator functionality, where you could build a small close-knit group of people who--while having their own areas of expertise--took care in paring down their own individual firehoses to well curated streams of interesting content. That's it: no more, no less. When Google trashed that feature set to shoehorn the 10 pound G+ monster into that 5 pound bag, it was over.