There was once my Nitecore EA11 failed to turn on. Of my branded torchlights, it's the only one that has done this. I've had a Condor C05 for much longer, used it a lot more heavily, and it has never failed even once. Although both are made in China, the C05 definitely feels higher-quality. The EA11 is still ahead of all those cheapo unknown-brand and 'Ultrafire' torchlights (I have one), though, and I think it's still OK as long as you have a back-up torchlight. My back-up is my Condor C05 and occasionally my Surefire G2X LE. I will rarely, if ever, carry only one torchlight, anyway, so I'm not too worried. But I'm not going to say my EA11 is particularly reliable.
Reliability, Performance, Affordability. Perhaps you just can't have all three at once. My Condor sacrifices performance to be reliable and affordable; my Surefire sacrifices affordability for performance and reliability, and my Nitecore sacrifices reliability for performance and affordability. I guess.