I had Safelite install a replacement windshield when my original, maybe a month old, took a rock hit and developed a long crack. In retrospect, I might have preferred getting an OEM replacement piece, as I immediately noticed that the new glass has considerably greater distortion at the extreme edges, along the curve where the glass bends to meet the A pillars. It can be a pain when looking into a sharp curve, or checking traffic at an intersection. May or may not be an issue for others, depending on seating position, I guess. In any event, if this one cracks, I'll switch back, or at least try a unit from another manufacturer...
The installation itself, however, was fine, no issues there.