You know, I'm split on this. I have a 1080p display as well, and my PC recommends 125% (as opposed to the 100% it was on before), and while I feel like 125 seems a little more reasonable, it seems off somehow. Like, little textbox warning and various other minor aspects are blurry and lowres looking. 100% was at least aesthetically consistent.
I can't imagine how distorted 150% could be, but that seems a litttttle ridiculous.