Time travel is tricky business. There are so many ways to do it, how do you choose? You want it to be fantastical but convincing. 'Out there', but believable. And honestly, I just don't think it can be done. H.G. Wells not withstanding, I think it's just too difficult to crate a reliable time travel scenario. They all seem "fakey" to me. Kind of like the Dr. Who time tunnel.
Though personally if I were to write on time travel, I'd make it like the warp drive on Space Balls.... I'd go to plaid.