Just filtering oil doesn't fix the oil completely. It can stretch oil change intervals, yet just filtering, however fine it is (0.5 microns here), can't reverse oil aging (oxidation, acid buildup, additive breakdown from shearing, etc.).
With a good synthetic on a healthy engine, this may help you get 30,000 miles on the same oil, not much more than that I'd guess.
Bottom line: It has merits. Could be the in the future this will be routine every 6 months.