No, I haven't seen it. After multiple emphatic warnings, I went and thoroughly spoiled myself, and it looks like I'm probably never going to watch it either. The death of Ianto, while I'm not happy about it (UNDERSTATEMENT), isn't what actually ended up being the dealbreaker here for me. A good solid saving people death would have made me cry like a little bitch, but I could have dealt (and then promptly run to the comforting arms of fixitland). No, it's that the entire resolution of pretty much everything, inlcuding but not limited to that, reads as so unrelentingly bleak and depressing and utterly without a shred of hope. And, I'm sorry, unless you are an independent Canadian film, you don't get to do that to me.
Not that I'm particularly surprised that Torchwood would go there, I have seen the show after all. But what I always loved about it was all the spaces it left in the margins for good old fashioned cracky glee laced scribbling. I never actually cared if it was good. Hell, the fact that it often wasn't led to some of the best unintentional hilarity ever (Ianto's gilfriend being doused in barbecue sauce and eaten by a pterodactyl? NEVER NOT FUNNY). So reports that this series was well done do not move me. Good for them, I guess, but I'm over in the land where it's possible to vid mpreg, ya know? And everything I've read tells me the wiggle room is gone, gone, gone now.
So, yeah. Torchwood ended at season two for me, and I am content to leave it there.