If a transporter instantly deconstructed you atom by atom, read the state of each atom sent the information to the reciever and reconstructed an exact replica of you, so exact that all your memories would be absolutely perfectly intact, the replica would step out of the reciever exactly like in Star Trek feeling only that it had been transported. It could even be transported better than you are originally. Such as if you have cancer the cancerous data could be deleted from the data, Bad heart, lungs, kidneys, liver? all could be replaced perfectly new, dna mached organs. The data could be transmitted anywhere we could put a reciever. Star travel at the speed of light would be possible. Backups of the data would be possible so no matter what happened to a replica a new one could be created. More than one could be created, they could be in two places at once and then their memories be recombined into one so it would have the memories of both.
But, make no mistake, the original would be totaly gone as totaly as if 20 tons of TNT had gone off in your ear. Sent up a chimny in a puff of smoke. And every time you transported the same thing would happen.
Put bluntly; your body would be dead, dead at your own hand. When you push that transport button you won't know if your soul will transport with you any more than you now know if you have a soul. Will you go to heaven? Will you go to hell? Will you go to oblivion? Or will you wind up at your destination? When you step into that transporter you are stepping into the totally unknown.
Maybe you are one of the first to use it for the first time and everyone tells you you are a fool to use it. Maybe you are one of the last to use it for the first time and everybody tells you you are a fool for not using it. They all say that it's totally painless and that you don't feel a thing and that they are none the worst for wear having used it.
Would you use it?