My driving completely changed since last year -- no long commute, and much less driving overall. Most trips now are short; up to 12 miles or so. So, my FE is not quite as good as last year. Rolling resistance is excellent -- I can coast longer than with the old all season tires. The Nokian H's are the quietest tires I have ever owned, and they grip quite well -- coasting around corners is the exciting part of ecodriving.
They seem to be wearing pretty well, but I can't say how long they will last. And they ride comfortably and firmly at 51PSI.