Yes it on par for wear performance, maybe not quite as much detergency (calcium) and sludge resistance (boron) compared to Pennz Ultra. Pennzoil claims Ultra is cleaner at the piston rings, and the basic ingredients comparisons seem to support that.
http://www.pqiamerica.com/March2013PCMO/Marchsyntheticsallfinal.html
I appreciate your desire to avoid anecdotal opinions here.
People like to quickly come on here and say "Its real good!".
For 7,500 miles there shouldn't be much diff.
There was a UOA that showed 1 ppm iron per 1,000 miles accumulated using QuakerSUD, which is very good, although they also put in Ceratec. Maybe some other UOAs you find with QSUD will have comparable performance.
Some facts:
SOPUS (Shell-Pennzoil) is behind it. Great company, enjoyed their tour, proving they have good engineering behind them.
http://www.youtube.com/watch?v=pUr7-Ug1Uqc at the 4:40 point in the video.
Also, its known Quaker State Ultimate Durability QSUD uses Infineum's trinuclear moly, not a cheap-skate thing to add in those amounts (249 ppm in 0w-20, and 58 ppm 5w-30).