Yep. I have it for the PS3. I wanted to like this game so bad, but ultimately never could.
Hmm, I don't know. Final Fantasy XIII may be a subpar game, especially compared to other Final Fantasy games, but the production value seems too high to call it "pure BS". I'd reserve that title for something like, oh, Ride to Hell, Mindjack, or Sonic Boom Rise of Lyric.
I tried the game on 360 a few years back, but it lost my interest after an hour or so. But at the time I was fully initiated into the "PC master race" mindset, so I thought I might be more receptive to it on PC.

It wouldn't be the first time I've lost interest in a game for a while and come back to love it -- Chrono Trigger, Deus Ex Human Revolution and Legend of Zelda: A Link Between Worlds are some examples.
The utter laziness of this PC port isn't really doing it any favors, though. No mouse support whatsoever? Wtf Square Enix? I understand Japanese developers have little experience developing for PC, but was it too hard to call up the PC guys at their Eidos subsidiary and be like, "Hey, so we're porting FF XIII to PC, got any tips on what we should do?" And like Dark Souls, they didn't have support for resolutions other than 720p on release. Thankfully they did patch the game to support more resolutions, but the game still has frame timing issues. But hey, at least it supports MSAA. More than that, it's actually a version of CSAA, and it's low cost too. According to an analysis over at PCGamer, the game engine is actually an old fashioned MSAA-friendly forward renderer, rather than a deferred renderer. The trade off is that forward renderers can't have many dynamic light sources like deferred renderers without driving the performance cost way up.
No setting for anisotropic filtering, but that can be easily rectified by forcing it in the graphics control panel. There actually is a direct
shadow resolution setting, all the way up to 8192x8192. It's certainly nice to bump up shadow resolution over what it was on consoles, but since they're not really soft shadows, the full 8192 setting seems like overkill, making them unrealistically sharp.
Final Fantasy was on the 360?
Yeah, it was the first multiplatform Final Fantasy game, releasing on both the PS3 and 360. It was clearly developed for the PS3 first though, making use of the Cell processor for graphics and such. And video compression was worse on the 360 than the PS3. So it was one of the rare multiplatform games that looked uniformly better on the PS3 than the 360. I do hope they worked from the PS3 source code for the PC port, even though porting from the 360 probably would have been easier.