According to Gameranx, the Christmas 2012 issue of PC Gamer contains a review of Hitman: Absolution by Tom Francis who did say some negative comment about Hitman: Absolution PC with a very average score.
The review sub-titled as "Hitman: Absolution is a mess. The police do not expect Blood Money is involved" with a 62 out of 100 score.
The PC Gamer review criticize Hitman: Absolution for its art style and overuse of bloom, poor story, small levels, pointless objectives (e.g. open a door), no saves, bad AI. The review also points out that many of the assassinations you perform in Absolutions are pre-determined cutscenes in which Agent 47 fails to kill his target. And the game will encourages you to kill guards and sentries unlike previous Hitman games, which emphasized stealth over all else.
Moreover, the review notes that the PC port of the game was done so poorly that the game even tells you to "gently" press your mouse button, as if it were the same as an X360 controller. In addition, the performance of the game was sub-par on PC Gamer's machines (not sure about its configuration, but it should be high enough), running at a sluggish 15~ FPS.
The verdict of that review reads "A passable stealth game, but one that betrays almost everything that, until now, has made Hitman great."
The first review score of Hitman: Absolution was 9/10 from both OPM and OXM.
Hitman: Absolution is scheduled for November 20, 2012 release on PC, PS3 and XBOX360.